[976] | 1 | |
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| 2 | /*! |
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| 3 | \file |
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| 4 | \brief Robust |
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| 5 | \author Vasek Smidl |
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| 6 | |
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| 7 | */ |
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| 8 | |
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[1337] | 9 | #include "estim/arx.h" |
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[976] | 10 | #include "robustlib.h" |
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[1216] | 11 | #include <vector> |
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[1284] | 12 | #include <iostream> |
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[1282] | 13 | #include <fstream> |
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[1338] | 14 | #include <itpp/itsignal.h> |
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[1361] | 15 | #include "windows.h" |
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| 16 | #include "ddeml.h" |
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| 17 | #include "stdio.h" |
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[1282] | 18 | |
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[1361] | 19 | //#include "DDEClient.h" |
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| 20 | //#include <conio.h> |
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[1358] | 21 | |
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[1361] | 22 | |
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[1208] | 23 | using namespace itpp; |
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[1337] | 24 | using namespace bdm; |
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[976] | 25 | |
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[1361] | 26 | //const int emlig_size = 2; |
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| 27 | //const int utility_constant = 5; |
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[1268] | 28 | |
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[1361] | 29 | const int max_model_order = 2; |
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[1272] | 30 | |
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[1361] | 31 | |
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| 32 | |
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| 33 | HDDEDATA CALLBACK DdeCallback( |
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| 34 | UINT uType, // Transaction type. |
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| 35 | UINT uFmt, // Clipboard data format. |
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| 36 | HCONV hconv, // Handle to the conversation. |
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| 37 | HSZ hsz1, // Handle to a string. |
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| 38 | HSZ hsz2, // Handle to a string. |
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| 39 | HDDEDATA hdata, // Handle to a global memory object. |
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| 40 | DWORD dwData1, // Transaction-specific data. |
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| 41 | DWORD dwData2) // Transaction-specific data. |
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| 42 | { |
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| 43 | return 0; |
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| 44 | } |
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| 45 | |
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| 46 | void DDERequest(DWORD idInst, HCONV hConv, char* szItem) |
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| 47 | { |
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| 48 | HSZ hszItem = DdeCreateStringHandle(idInst, szItem, 0); |
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| 49 | HDDEDATA hData = DdeClientTransaction(NULL,0,hConv,hszItem,CF_TEXT, |
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| 50 | XTYP_REQUEST,TIMEOUT_ASYNC , NULL); |
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| 51 | if (hData==NULL) |
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| 52 | { |
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| 53 | printf("Request failed: %s\n", szItem); |
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| 54 | } |
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| 55 | |
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| 56 | if (hData==0) |
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| 57 | { |
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| 58 | printf("Request failed: %s\n", szItem); |
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| 59 | } |
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| 60 | } |
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| 61 | |
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| 62 | class model |
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| 63 | { |
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[976] | 64 | |
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[1337] | 65 | |
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[1361] | 66 | public: |
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| 67 | list<pair<int,int>> ar_components; |
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[1358] | 68 | |
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[1361] | 69 | // Best thing would be to inherit the two models from a single souce, this is planned, but now structurally |
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| 70 | // problematic. |
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| 71 | RARX* my_rarx; |
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| 72 | ARXwin* my_arx; |
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| 73 | |
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| 74 | bool has_constant; |
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| 75 | int window_size; |
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| 76 | int predicted_channel; |
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| 77 | mat* data_matrix; |
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| 78 | |
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| 79 | model(list<pair<int,int>> ar_components, |
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| 80 | bool robust, |
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| 81 | bool has_constant, |
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| 82 | int window_size, |
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| 83 | int predicted_channel, |
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| 84 | mat* data_matrix) |
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[1358] | 85 | { |
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[1361] | 86 | this->ar_components.insert(this->ar_components.begin(),ar_components.begin(),ar_components.end()); |
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| 87 | this->has_constant = has_constant; |
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| 88 | this->window_size = window_size; |
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| 89 | this->predicted_channel = predicted_channel; |
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| 90 | this->data_matrix = data_matrix; |
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| 91 | |
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| 92 | if(robust) |
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| 93 | { |
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| 94 | if(has_constant) |
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| 95 | { |
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| 96 | my_rarx = new RARX(ar_components.size()+1,window_size,true); |
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| 97 | my_arx = NULL; |
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| 98 | } |
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| 99 | else |
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| 100 | { |
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| 101 | my_rarx = new RARX(ar_components.size(),window_size,false); |
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| 102 | my_arx = NULL; |
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| 103 | } |
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| 104 | } |
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| 105 | else |
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| 106 | { |
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| 107 | my_rarx = NULL; |
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| 108 | my_arx = new ARXwin(); |
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| 109 | mat V0; |
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| 110 | |
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| 111 | if(has_constant) |
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| 112 | { |
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[1362] | 113 | V0 = 0.01 * eye(ar_components.size()+2); |
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| 114 | V0(0,0) = 1; |
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[1361] | 115 | my_arx->set_constant(true); |
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| 116 | |
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| 117 | } |
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| 118 | else |
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| 119 | { |
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| 120 | |
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[1362] | 121 | V0 = 0.01 * eye(ar_components.size()+1); |
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| 122 | V0(0,0) = 1; |
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[1361] | 123 | my_arx->set_constant(false); |
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| 124 | |
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| 125 | } |
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| 126 | |
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| 127 | my_arx->set_statistics(1, V0); |
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| 128 | my_arx->set_parameters(window_size); |
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| 129 | my_arx->validate(); |
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| 130 | } |
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[1358] | 131 | } |
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[1361] | 132 | |
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| 133 | void data_update(int time) |
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[1358] | 134 | { |
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[1361] | 135 | vec data_vector; |
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| 136 | for(list<pair<int,int>>::iterator ar_iterator = ar_components.begin();ar_iterator!=ar_components.end();ar_iterator++) |
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| 137 | { |
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| 138 | data_vector.ins(data_vector.size(),(*data_matrix).get(ar_iterator->first,time-ar_iterator->second)); |
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| 139 | } |
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[1358] | 140 | |
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[1361] | 141 | if(my_rarx!=NULL) |
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[1358] | 142 | { |
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[1361] | 143 | data_vector.ins(0,(*data_matrix).get(predicted_channel,time)); |
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| 144 | my_rarx->bayes(data_vector); |
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[1358] | 145 | } |
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| 146 | else |
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| 147 | { |
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[1361] | 148 | vec pred_vec; |
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| 149 | pred_vec.ins(0,(*data_matrix).get(predicted_channel,time)); |
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| 150 | my_arx->bayes(pred_vec,data_vector); |
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| 151 | } |
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| 152 | } |
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| 153 | |
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| 154 | static list<list<pair<int,int>>> possible_models_recurse(int max_order,int number_of_channels) |
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| 155 | { |
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| 156 | list<list<pair<int,int>>> created_model_types; |
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| 157 | |
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| 158 | if(max_order == 1) |
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| 159 | { |
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| 160 | for(int channel = 0;channel<number_of_channels;channel++) |
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[1358] | 161 | { |
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[1361] | 162 | list<pair<int,int>> returned_type; |
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| 163 | returned_type.push_back(pair<int,int>(channel,1)); |
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| 164 | created_model_types.push_back(returned_type); |
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[1358] | 165 | } |
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[1361] | 166 | |
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| 167 | return created_model_types; |
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| 168 | } |
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| 169 | else |
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| 170 | { |
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| 171 | created_model_types = possible_models_recurse(max_order-1,number_of_channels); |
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| 172 | list<list<pair<int,int>>> returned_types; |
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| 173 | |
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| 174 | for(list<list<pair<int,int>>>::iterator model_ref = created_model_types.begin();model_ref!=created_model_types.end();model_ref++) |
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| 175 | { |
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| 176 | |
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| 177 | for(int order = 1; order<=max_order; order++) |
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[1358] | 178 | { |
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[1361] | 179 | for(int channel = 0;channel<number_of_channels;channel++) |
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| 180 | { |
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| 181 | list<pair<int,int>> returned_type; |
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| 182 | pair<int,int> new_pair = pair<int,int>(channel,order); |
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| 183 | if(find((*model_ref).begin(),(*model_ref).end(),new_pair)==(*model_ref).end()) |
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| 184 | { |
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| 185 | returned_type.insert(returned_type.begin(),(*model_ref).begin(),(*model_ref).end()); |
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| 186 | returned_type.push_back(new_pair); |
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| 187 | returned_types.push_back(returned_type); |
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| 188 | } |
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| 189 | } |
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[1358] | 190 | } |
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| 191 | } |
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[1361] | 192 | |
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| 193 | created_model_types.insert(created_model_types.end(),returned_types.begin(),returned_types.end()); |
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| 194 | |
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| 195 | return created_model_types; |
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| 196 | } |
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[1358] | 197 | } |
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[1361] | 198 | }; |
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| 199 | |
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| 200 | |
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| 201 | |
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| 202 | |
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| 203 | int main ( int argc, char* argv[] ) { |
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[1358] | 204 | |
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[1361] | 205 | itpp::Laplace_RNG LapRNG = Laplace_RNG(); |
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| 206 | |
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[1300] | 207 | /* |
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[1361] | 208 | char szApp[] = "MT4"; |
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| 209 | char szTopic[] = "ASK"; |
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| 210 | char szItem1[] = "EURUSD"; |
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| 211 | |
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| 212 | //DDE Initialization |
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| 213 | DWORD idInst=0; |
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| 214 | UINT iReturn; |
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| 215 | iReturn = DdeInitialize(&idInst, (PFNCALLBACK)DdeCallback, |
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| 216 | APPCLASS_STANDARD | APPCMD_CLIENTONLY, 0 ); |
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| 217 | if (iReturn!=DMLERR_NO_ERROR) |
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| 218 | { |
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| 219 | printf("DDE Initialization Failed: 0x%04x\n", iReturn); |
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| 220 | Sleep(1500); |
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| 221 | return 0; |
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| 222 | } |
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| 223 | |
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| 224 | /* |
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| 225 | //Start DDE Server and wait for it to become idle. |
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| 226 | HINSTANCE hRet = ShellExecute(0, "open", szTopic, 0, 0, SW_SHOWNORMAL); |
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| 227 | if ((int)hRet < 33) |
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| 228 | { |
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| 229 | printf("Unable to Start DDE Server: 0x%04x\n", hRet); |
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| 230 | Sleep(1500); DdeUninitialize(idInst); |
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| 231 | return 0; |
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| 232 | } |
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| 233 | Sleep(1000); |
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| 234 | */ |
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| 235 | |
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| 236 | /* |
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| 237 | //DDE Connect to Server using given AppName and topic. |
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| 238 | HSZ hszApp, hszTopic; |
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| 239 | HCONV hConv; |
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| 240 | hszApp = DdeCreateStringHandle(idInst, szApp, 0); |
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| 241 | hszTopic = DdeCreateStringHandle(idInst, szTopic, 0); |
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| 242 | hConv = DdeConnect(idInst, hszApp, hszTopic, NULL); |
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| 243 | DdeFreeStringHandle(idInst, hszApp); |
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| 244 | DdeFreeStringHandle(idInst, hszTopic); |
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| 245 | if (hConv == NULL) |
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| 246 | { |
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| 247 | printf("DDE Connection Failed.\n"); |
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| 248 | Sleep(1500); DdeUninitialize(idInst); |
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| 249 | return 0; |
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| 250 | } |
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| 251 | |
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| 252 | //Execute commands/requests specific to the DDE Server. |
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| 253 | |
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| 254 | DDERequest(idInst, hConv, szItem1); |
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| 255 | |
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| 256 | //DDE Disconnect and Uninitialize. |
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| 257 | //DdeDisconnect(hConv); |
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| 258 | //DdeUninitialize(idInst); |
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| 259 | |
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| 260 | Sleep(300000); |
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| 261 | Sleep(3000); |
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| 262 | */ |
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| 263 | |
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| 264 | /* |
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[1301] | 265 | // EXPERIMENT: 100 AR model generated time series of length of 30 from y_t=0.95*y_(t-1)+0.05*y_(t-2)+0.2*e_t, |
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| 266 | // where e_t is normally, student(4) and cauchy distributed are tested using robust AR model, to obtain the |
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| 267 | // variance of location parameter estimators and compare it to the classical setup. |
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[1282] | 268 | vector<vector<vector<string>>> string_lists; |
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| 269 | string_lists.push_back(vector<vector<string>>()); |
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| 270 | string_lists.push_back(vector<vector<string>>()); |
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| 271 | string_lists.push_back(vector<vector<string>>()); |
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[1186] | 272 | |
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[1282] | 273 | char* file_strings[3] = {"c:\\ar_normal.txt", "c:\\ar_student.txt", "c:\\ar_cauchy.txt"}; |
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[1268] | 274 | |
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[1282] | 275 | |
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| 276 | for(int i = 0;i<3;i++) |
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| 277 | { |
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| 278 | ifstream myfile(file_strings[i]); |
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| 279 | if (myfile.is_open()) |
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| 280 | { |
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| 281 | while ( myfile.good() ) |
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| 282 | { |
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| 283 | string line; |
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| 284 | getline(myfile,line); |
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| 285 | |
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| 286 | vector<string> parsed_line; |
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| 287 | while(line.find(',') != string::npos) |
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| 288 | { |
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| 289 | int loc = line.find(','); |
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| 290 | parsed_line.push_back(line.substr(0,loc)); |
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| 291 | line.erase(0,loc+1); |
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| 292 | } |
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| 293 | |
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| 294 | string_lists[i].push_back(parsed_line); |
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| 295 | } |
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| 296 | myfile.close(); |
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| 297 | } |
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| 298 | } |
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| 299 | |
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| 300 | for(int j = 0;j<string_lists.size();j++) |
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| 301 | { |
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[1301] | 302 | |
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[1284] | 303 | for(int i = 0;i<string_lists[j].size()-1;i++) |
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[1282] | 304 | { |
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| 305 | vector<vec> conditions; |
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[1301] | 306 | //emlig* emliga = new emlig(2); |
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| 307 | RARX* my_rarx = new RARX(2,30); |
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| 308 | |
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[1282] | 309 | for(int k = 1;k<string_lists[j][i].size();k++) |
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| 310 | { |
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| 311 | vec condition; |
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| 312 | //condition.ins(0,1); |
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| 313 | condition.ins(0,string_lists[j][i][k]); |
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| 314 | conditions.push_back(condition); |
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| 315 | |
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| 316 | //cout << "orig:" << condition << endl; |
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| 317 | |
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| 318 | if(conditions.size()>1) |
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| 319 | { |
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| 320 | conditions[k-2].ins(0,string_lists[j][i][k]); |
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| 321 | |
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| 322 | } |
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| 323 | |
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| 324 | if(conditions.size()>2) |
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| 325 | { |
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| 326 | conditions[k-3].ins(0,string_lists[j][i][k]); |
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| 327 | |
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| 328 | //cout << "modi:" << conditions[k-3] << endl; |
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| 329 | |
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[1301] | 330 | my_rarx->bayes(conditions[k-3]); |
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[1282] | 331 | |
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[1299] | 332 | |
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| 333 | //if(k>5) |
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| 334 | //{ |
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| 335 | // cout << "MaxLik coords:" << emliga->minimal_vertex->get_coordinates() << endl; |
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| 336 | //} |
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| 337 | |
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| 338 | } |
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| 339 | |
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[1282] | 340 | } |
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| 341 | |
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| 342 | //emliga->step_me(0); |
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[1301] | 343 | /* |
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[1284] | 344 | ofstream myfile; |
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| 345 | myfile.open("c:\\robust_ar1.txt",ios::app); |
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[1301] | 346 | myfile << my_rarx->minimal_vertex->get_coordinates()[0] << ";"; |
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[1284] | 347 | myfile.close(); |
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| 348 | |
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| 349 | myfile.open("c:\\robust_ar2.txt",ios::app); |
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| 350 | myfile << emliga->minimal_vertex->get_coordinates()[1] << ";"; |
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| 351 | myfile.close(); |
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[1301] | 352 | |
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[1284] | 353 | |
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[1282] | 354 | cout << "MaxLik coords:" << emliga->minimal_vertex->get_coordinates() << endl; |
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| 355 | cout << "Step: " << i << endl; |
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| 356 | } |
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| 357 | |
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| 358 | cout << "One experiment finished." << endl; |
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[1284] | 359 | |
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| 360 | ofstream myfile; |
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| 361 | myfile.open("c:\\robust_ar1.txt",ios::app); |
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| 362 | myfile << endl; |
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| 363 | myfile.close(); |
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| 364 | |
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| 365 | myfile.open("c:\\robust_ar2.txt",ios::app); |
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| 366 | myfile << endl; |
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| 367 | myfile.close(); |
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[1301] | 368 | }*/ |
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| 369 | |
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[1361] | 370 | |
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[1301] | 371 | |
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| 372 | // EXPERIMENT: A moving window estimation and prediction of RARX is tested on data generated from |
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| 373 | // y_t=0.95*y_(t-1)+0.05*y_(t-2)+0.2*e_t, where e_t is normally, student(4) and cauchy distributed. It |
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| 374 | // can be compared to the classical setup. |
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| 375 | |
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| 376 | |
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| 377 | vector<vector<string>> strings; |
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| 378 | |
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[1361] | 379 | char* file_string = "c:\\data"; |
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[1301] | 380 | |
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[1361] | 381 | char dfstring[80]; |
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| 382 | strcpy(dfstring,file_string); |
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| 383 | strcat(dfstring,".txt"); |
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[1337] | 384 | |
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[1361] | 385 | |
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| 386 | mat data_matrix; |
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| 387 | ifstream myfile(dfstring); |
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| 388 | if (myfile.is_open()) |
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| 389 | { |
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| 390 | string line; |
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| 391 | while(getline(myfile,line)) |
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[1301] | 392 | { |
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[1361] | 393 | vec data_vector; |
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[1301] | 394 | while(line.find(',') != string::npos) |
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| 395 | { |
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[1361] | 396 | int loc2 = line.find('\n'); |
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| 397 | int loc = line.find(','); |
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| 398 | data_vector.ins(data_vector.size(),atof(line.substr(0,loc).c_str())); |
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[1301] | 399 | line.erase(0,loc+1); |
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[1361] | 400 | } |
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[1301] | 401 | |
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[1361] | 402 | data_matrix.ins_row(data_matrix.rows(),data_vector); |
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| 403 | } |
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| 404 | |
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| 405 | myfile.close(); |
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[1282] | 406 | } |
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[1361] | 407 | else |
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| 408 | { |
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| 409 | cout << "Can't open data file!" << endl; |
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| 410 | } |
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| 411 | |
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| 412 | list<list<pair<int,int>>> model_types = model::possible_models_recurse(max_model_order,data_matrix.rows()); |
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[1357] | 413 | |
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[1361] | 414 | list<model*> models; |
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| 415 | for(list<list<pair<int,int>>>::iterator model_type = model_types.begin();model_type!=model_types.end();model_type++) |
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| 416 | { |
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| 417 | models.push_back(new model((*model_type),true,false,30,0,&data_matrix)); |
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| 418 | models.push_back(new model((*model_type),false,false,30,0,&data_matrix)); |
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| 419 | } |
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[1282] | 420 | |
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[1361] | 421 | mat result_lognc; |
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| 422 | |
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| 423 | for(int time = max_model_order;20;time++) //time<data_matrix.cols() |
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| 424 | { |
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| 425 | vec cur_res_lognc; |
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| 426 | |
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| 427 | for(list<model*>::iterator model_ref = models.begin();model_ref!=models.end();model_ref++) |
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| 428 | { |
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| 429 | (*model_ref)->data_update(time); |
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| 430 | if((*model_ref)->my_rarx!=NULL) |
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| 431 | { |
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| 432 | cur_res_lognc.ins(cur_res_lognc.size(),(*model_ref)->my_rarx->posterior->log_nc); |
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| 433 | } |
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| 434 | else |
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| 435 | { |
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| 436 | cur_res_lognc.ins(cur_res_lognc.size(),(*model_ref)->my_arx->posterior().lognc()); |
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| 437 | } |
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| 438 | } |
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| 439 | |
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| 440 | result_lognc.ins_col(result_lognc.cols(),cur_res_lognc); |
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| 441 | |
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| 442 | cout << "Updated." << endl; |
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| 443 | |
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| 444 | /* |
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[1301] | 445 | vector<vec> conditions; |
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| 446 | //emlig* emliga = new emlig(2); |
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[1358] | 447 | RARX* my_rarx = new RARX(2,10,false); |
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[1337] | 448 | |
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[1338] | 449 | |
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[1337] | 450 | mat V0 = 0.0001 * eye ( 3 ); |
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[1349] | 451 | ARX* my_arx = new ARX(0.85); |
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[1337] | 452 | my_arx->set_statistics ( 1, V0 ); //nu is default (set to have finite moments) |
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| 453 | my_arx->set_constant ( false ); |
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| 454 | my_arx->validate(); |
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[1338] | 455 | |
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[1301] | 456 | |
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[1338] | 457 | for(int k = 1;k<strings[j].size();k++) |
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[1301] | 458 | { |
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| 459 | vec condition; |
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| 460 | //condition.ins(0,1); |
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| 461 | condition.ins(0,strings[j][k]); |
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| 462 | conditions.push_back(condition); |
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| 463 | |
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| 464 | //cout << "orig:" << condition << endl; |
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| 465 | |
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| 466 | if(conditions.size()>1) |
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| 467 | { |
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| 468 | conditions[k-2].ins(0,strings[j][k]); |
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| 469 | |
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| 470 | } |
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| 471 | |
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| 472 | if(conditions.size()>2) |
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| 473 | { |
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| 474 | conditions[k-3].ins(0,strings[j][k]); |
---|
| 475 | |
---|
[1349] | 476 | // cout << "Condition:" << conditions[k-3] << endl; |
---|
[1301] | 477 | |
---|
| 478 | my_rarx->bayes(conditions[k-3]); |
---|
[1338] | 479 | //my_rarx->posterior->step_me(1); |
---|
[1337] | 480 | |
---|
| 481 | vec cond_vec; |
---|
| 482 | cond_vec.ins(0,conditions[k-3][0]); |
---|
| 483 | |
---|
[1338] | 484 | my_arx->bayes(cond_vec,conditions[k-3].right(2)); |
---|
[1301] | 485 | |
---|
[1361] | 486 | /* |
---|
[1346] | 487 | if(k>8) |
---|
[1301] | 488 | { |
---|
[1324] | 489 | //my_rarx->posterior->step_me(0); |
---|
| 490 | |
---|
[1346] | 491 | //mat samples = my_rarx->posterior->sample_mat(10); |
---|
[1343] | 492 | |
---|
[1346] | 493 | pair<vec,mat> imp_samples = my_rarx->posterior->importance_sample(1000); |
---|
[1343] | 494 | |
---|
[1346] | 495 | //cout << imp_samples.first << endl; |
---|
[1336] | 496 | |
---|
[1337] | 497 | vec sample_prediction; |
---|
[1358] | 498 | vec averaged_params = zeros(imp_samples.second.rows()); |
---|
[1346] | 499 | for(int t = 0;t<imp_samples.first.size();t++) |
---|
[1337] | 500 | { |
---|
| 501 | vec lap_sample = conditions[k-3].left(2); |
---|
[1346] | 502 | //lap_sample.ins(lap_sample.size(),1.0); |
---|
[1337] | 503 | |
---|
| 504 | lap_sample.ins(0,LapRNG()); |
---|
| 505 | |
---|
[1346] | 506 | sample_prediction.ins(0,lap_sample*imp_samples.second.get_col(t)); |
---|
[1358] | 507 | |
---|
| 508 | averaged_params += imp_samples.first[t]*imp_samples.second.get_col(t); |
---|
[1337] | 509 | } |
---|
| 510 | |
---|
[1358] | 511 | averaged_params = averaged_params*(1/(imp_samples.first*ones(imp_samples.first.size()))); |
---|
| 512 | |
---|
| 513 | // cout << "Averaged estimated parameters: " << averaged_params << endl; |
---|
[1338] | 514 | |
---|
[1358] | 515 | vec sample_pow = sample_prediction; |
---|
[1343] | 516 | |
---|
| 517 | // cout << sample_prediction << endl; |
---|
[1337] | 518 | vec poly_coefs; |
---|
[1346] | 519 | double prediction; |
---|
[1337] | 520 | bool stop_iteration = false; |
---|
[1343] | 521 | int en = 1; |
---|
[1337] | 522 | do |
---|
| 523 | { |
---|
[1346] | 524 | double poly_coef = imp_samples.first*sample_pow/(imp_samples.first*ones(imp_samples.first.size())); |
---|
[1337] | 525 | |
---|
[1346] | 526 | if(en==1) |
---|
| 527 | { |
---|
| 528 | prediction = poly_coef; |
---|
| 529 | } |
---|
| 530 | |
---|
[1343] | 531 | poly_coef = poly_coef*en*fact(utility_constant-2+en)/fact(utility_constant-2); |
---|
| 532 | |
---|
[1337] | 533 | if(abs(poly_coef)>numeric_limits<double>::epsilon()) |
---|
| 534 | { |
---|
| 535 | sample_pow = elem_mult(sample_pow,sample_prediction); |
---|
[1343] | 536 | poly_coefs.ins(0,pow(-1.0,en+1)*poly_coef); |
---|
[1337] | 537 | } |
---|
| 538 | else |
---|
| 539 | { |
---|
| 540 | stop_iteration = true; |
---|
| 541 | } |
---|
| 542 | |
---|
| 543 | en++; |
---|
[1343] | 544 | |
---|
| 545 | if(en>20) |
---|
| 546 | { |
---|
| 547 | stop_iteration = true; |
---|
| 548 | } |
---|
[1337] | 549 | } |
---|
| 550 | while(!stop_iteration); |
---|
| 551 | |
---|
[1343] | 552 | /* |
---|
| 553 | ofstream myfile_coef; |
---|
| 554 | |
---|
| 555 | myfile_coef.open("c:\\coefs.txt",ios::app); |
---|
| 556 | |
---|
| 557 | for(int t = 0;t<poly_coefs.size();t++) |
---|
| 558 | { |
---|
| 559 | myfile_coef << poly_coefs[t] << ","; |
---|
| 560 | } |
---|
| 561 | |
---|
| 562 | myfile_coef << endl; |
---|
| 563 | myfile_coef.close(); |
---|
| 564 | */ |
---|
| 565 | |
---|
[1349] | 566 | //cout << "Coefficients: " << poly_coefs << endl; |
---|
[1338] | 567 | |
---|
[1343] | 568 | /* |
---|
| 569 | vec bas_coef = vec("1.0 2.0 -8.0"); |
---|
| 570 | cout << "Coefs: " << bas_coef << endl; |
---|
| 571 | cvec actions2 = roots(bas_coef); |
---|
| 572 | cout << "Roots: " << actions2 << endl; |
---|
| 573 | */ |
---|
| 574 | |
---|
[1361] | 575 | /* |
---|
[1346] | 576 | |
---|
[1338] | 577 | cvec actions = roots(poly_coefs); |
---|
[1343] | 578 | |
---|
| 579 | |
---|
[1338] | 580 | bool is_max = false; |
---|
| 581 | for(int t = 0;t<actions.size();t++) |
---|
| 582 | { |
---|
[1343] | 583 | if(actions[t].imag() == 0) |
---|
[1338] | 584 | { |
---|
[1343] | 585 | double second_derivative = 0; |
---|
| 586 | for(int q = 1;q<poly_coefs.size();q++) |
---|
| 587 | { |
---|
| 588 | second_derivative+=poly_coefs[q]*pow(actions[t].real(),q-1)*q; |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | if(second_derivative<0) |
---|
| 592 | { |
---|
| 593 | cout << "Action:" << actions[t].real() << endl; |
---|
| 594 | |
---|
| 595 | is_max = true; |
---|
| 596 | } |
---|
[1338] | 597 | } |
---|
| 598 | } |
---|
[1301] | 599 | |
---|
[1338] | 600 | if(!is_max) |
---|
| 601 | { |
---|
| 602 | cout << "No maximum." << endl; |
---|
| 603 | } |
---|
| 604 | |
---|
| 605 | // cout << "MaxLik coords:" << my_rarx->posterior->minimal_vertex->get_coordinates() << endl; |
---|
| 606 | |
---|
[1346] | 607 | /* |
---|
[1337] | 608 | double prediction = 0; |
---|
| 609 | for(int s = 1;s<samples.rows();s++) |
---|
[1336] | 610 | { |
---|
| 611 | |
---|
[1346] | 612 | double avg_parameter = imp_samples.get_row(s)*ones(samples.cols())/samples.cols(); |
---|
[1337] | 613 | |
---|
| 614 | prediction += avg_parameter*conditions[k-3][s-1]; |
---|
| 615 | |
---|
[1336] | 616 | |
---|
[1337] | 617 | |
---|
| 618 | /* |
---|
[1336] | 619 | ofstream myfile; |
---|
| 620 | char fstring[80]; |
---|
| 621 | strcpy(fstring,file_strings[j]); |
---|
[1301] | 622 | |
---|
[1336] | 623 | char es[5]; |
---|
| 624 | strcat(fstring,itoa(s,es,10)); |
---|
| 625 | |
---|
| 626 | strcat(fstring,"_res.txt"); |
---|
| 627 | |
---|
| 628 | |
---|
| 629 | myfile.open(fstring,ios::app); |
---|
| 630 | |
---|
| 631 | //myfile << my_rarx->posterior->minimal_vertex->get_coordinates()[0]; |
---|
| 632 | myfile << avg_parameter; |
---|
| 633 | |
---|
| 634 | if(k!=strings[j].size()-1) |
---|
| 635 | { |
---|
| 636 | myfile << ","; |
---|
| 637 | } |
---|
| 638 | else |
---|
| 639 | { |
---|
| 640 | myfile << endl; |
---|
| 641 | } |
---|
| 642 | myfile.close(); |
---|
[1337] | 643 | */ |
---|
| 644 | |
---|
[1338] | 645 | |
---|
[1346] | 646 | //} |
---|
| 647 | |
---|
| 648 | // cout << "Prediction: "<< prediction << endl; |
---|
[1361] | 649 | /* |
---|
[1337] | 650 | enorm<ldmat>* pred_mat = my_arx->epredictor(conditions[k-3].left(2)); |
---|
| 651 | double prediction2 = pred_mat->mean()[0]; |
---|
[1361] | 652 | */ |
---|
[1337] | 653 | |
---|
| 654 | ofstream myfile; |
---|
[1361] | 655 | char fstring[80]; |
---|
| 656 | strcpy(fstring,file_string); |
---|
[1337] | 657 | |
---|
[1361] | 658 | strcat(fstring,"lognc.txt"); |
---|
[1337] | 659 | |
---|
| 660 | myfile.open(fstring,ios::app); |
---|
| 661 | |
---|
[1338] | 662 | // myfile << my_rarx->posterior->minimal_vertex->get_coordinates()[0]; |
---|
[1337] | 663 | |
---|
[1361] | 664 | for(int i = 0;i<cur_res_lognc.size();i++) |
---|
[1337] | 665 | { |
---|
[1361] | 666 | myfile << cur_res_lognc[i] << ','; |
---|
[1337] | 667 | } |
---|
[1361] | 668 | |
---|
| 669 | myfile << endl; |
---|
| 670 | |
---|
[1337] | 671 | myfile.close(); |
---|
| 672 | |
---|
[1361] | 673 | /* |
---|
[1337] | 674 | myfile.open(f2string,ios::app); |
---|
| 675 | myfile << prediction2; |
---|
| 676 | |
---|
| 677 | if(k!=strings[j].size()-1) |
---|
| 678 | { |
---|
| 679 | myfile << ","; |
---|
| 680 | } |
---|
| 681 | else |
---|
| 682 | { |
---|
| 683 | myfile << endl; |
---|
| 684 | } |
---|
| 685 | myfile.close(); |
---|
[1361] | 686 | //*//* |
---|
[1337] | 687 | |
---|
[1319] | 688 | } |
---|
[1361] | 689 | } */ |
---|
[1301] | 690 | |
---|
| 691 | //emliga->step_me(0); |
---|
| 692 | /* |
---|
| 693 | ofstream myfile; |
---|
| 694 | myfile.open("c:\\robust_ar1.txt",ios::app); |
---|
| 695 | myfile << my_rarx->minimal_vertex->get_coordinates()[0] << ";"; |
---|
| 696 | myfile.close(); |
---|
| 697 | |
---|
| 698 | myfile.open("c:\\robust_ar2.txt",ios::app); |
---|
| 699 | myfile << emliga->minimal_vertex->get_coordinates()[1] << ";"; |
---|
| 700 | myfile.close(); |
---|
| 701 | |
---|
| 702 | |
---|
| 703 | cout << "MaxLik coords:" << emliga->minimal_vertex->get_coordinates() << endl; |
---|
| 704 | cout << "Step: " << i << endl;*/ |
---|
[1361] | 705 | //} |
---|
[1337] | 706 | |
---|
| 707 | |
---|
[1301] | 708 | } |
---|
[1337] | 709 | |
---|
| 710 | |
---|
| 711 | // EXPERIMENT: One step ahead price prediction. Comparison of classical and robust model using optimal trading |
---|
| 712 | // with maximization of logarithm of one-step ahead wealth. |
---|
| 713 | |
---|
| 714 | |
---|
[1301] | 715 | |
---|
| 716 | /* |
---|
| 717 | cout << "One experiment finished." << endl; |
---|
| 718 | |
---|
| 719 | ofstream myfile; |
---|
| 720 | myfile.open("c:\\robust_ar1.txt",ios::app); |
---|
| 721 | myfile << endl; |
---|
| 722 | myfile.close(); |
---|
| 723 | |
---|
| 724 | myfile.open("c:\\robust_ar2.txt",ios::app); |
---|
| 725 | myfile << endl; |
---|
| 726 | myfile.close();*/ |
---|
[1300] | 727 | |
---|
[1301] | 728 | |
---|
| 729 | //emlig* emlig1 = new emlig(emlig_size); |
---|
| 730 | |
---|
| 731 | //emlig1->step_me(0); |
---|
| 732 | //emlig* emlig2 = new emlig(emlig_size); |
---|
[1300] | 733 | |
---|
[1267] | 734 | /* |
---|
| 735 | emlig1->set_correction_factors(4); |
---|
[1266] | 736 | |
---|
[1267] | 737 | for(int j = 0;j<emlig1->correction_factors.size();j++) |
---|
| 738 | { |
---|
| 739 | for(set<my_ivec>::iterator vec_ref = emlig1->correction_factors[j].begin();vec_ref!=emlig1->correction_factors[j].end();vec_ref++) |
---|
| 740 | { |
---|
[1268] | 741 | cout << j << " "; |
---|
| 742 | |
---|
[1267] | 743 | for(int i=0;i<(*vec_ref).size();i++) |
---|
| 744 | { |
---|
| 745 | cout << (*vec_ref)[i]; |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | cout << endl; |
---|
| 749 | } |
---|
[1268] | 750 | }*/ |
---|
| 751 | |
---|
[1301] | 752 | /* |
---|
[1300] | 753 | vec condition5 = "1.0 1.0 1.01";//"-0.3 1.7 1.5"; |
---|
| 754 | |
---|
[1299] | 755 | emlig1->add_condition(condition5); |
---|
[1301] | 756 | //emlig1->step_me(0); |
---|
| 757 | |
---|
| 758 | |
---|
| 759 | vec condition1a = "-1.0 1.02 0.5"; |
---|
[1300] | 760 | //vec condition1b = "1.0 1.0 1.01"; |
---|
[1301] | 761 | emlig1->add_condition(condition1a); |
---|
[1300] | 762 | //emlig2->add_condition(condition1b); |
---|
[1267] | 763 | |
---|
[1301] | 764 | vec condition2a = "-0.3 1.7 1.5"; |
---|
[1300] | 765 | //vec condition2b = "-1.0 1.0 1.0"; |
---|
[1301] | 766 | emlig1->add_condition(condition2a); |
---|
[1300] | 767 | //emlig2->add_condition(condition2b); |
---|
[1234] | 768 | |
---|
[1301] | 769 | vec condition3a = "0.5 -1.01 1.0"; |
---|
[1300] | 770 | //vec condition3b = "0.5 -1.01 1.0"; |
---|
[1280] | 771 | |
---|
[1301] | 772 | emlig1->add_condition(condition3a); |
---|
[1300] | 773 | //emlig2->add_condition(condition3b); |
---|
[1280] | 774 | |
---|
[1301] | 775 | vec condition4a = "-0.5 -1.0 1.0"; |
---|
[1300] | 776 | //vec condition4b = "-0.5 -1.0 1.0"; |
---|
| 777 | |
---|
[1301] | 778 | emlig1->add_condition(condition4a); |
---|
[1300] | 779 | //cout << "************************************************" << endl; |
---|
| 780 | //emlig2->add_condition(condition4b); |
---|
| 781 | //cout << "************************************************" << endl; |
---|
| 782 | |
---|
[1299] | 783 | //cout << emlig1->minimal_vertex->get_coordinates(); |
---|
[1300] | 784 | |
---|
[1301] | 785 | //emlig1->remove_condition(condition3a); |
---|
| 786 | //emlig1->step_me(0); |
---|
| 787 | //emlig1->remove_condition(condition2a); |
---|
| 788 | //emlig1->remove_condition(condition1a); |
---|
| 789 | //emlig1->remove_condition(condition5); |
---|
| 790 | |
---|
[1275] | 791 | |
---|
[1299] | 792 | //emlig1->step_me(0); |
---|
| 793 | //emlig2->step_me(0); |
---|
| 794 | |
---|
[1282] | 795 | |
---|
| 796 | // DA SE POUZIT PRO VYPIS DO SOUBORU |
---|
[1275] | 797 | // emlig1->step_me(0); |
---|
| 798 | |
---|
| 799 | //emlig1->remove_condition(condition1); |
---|
| 800 | |
---|
[1301] | 801 | |
---|
[1275] | 802 | |
---|
| 803 | |
---|
[1301] | 804 | |
---|
[1275] | 805 | /* |
---|
[1282] | 806 | for(int i = 0;i<100;i++) |
---|
[1219] | 807 | { |
---|
[1282] | 808 | cout << endl << "Step:" << i << endl; |
---|
[1208] | 809 | |
---|
[1268] | 810 | double condition[emlig_size+1]; |
---|
[1220] | 811 | |
---|
[1268] | 812 | for(int k = 0;k<=emlig_size;k++) |
---|
| 813 | { |
---|
[1272] | 814 | condition[k] = (rand()-RAND_MAX/2)/1000.0; |
---|
[1268] | 815 | } |
---|
| 816 | |
---|
[1216] | 817 | |
---|
[1268] | 818 | vec* condition_vec = new vec(condition,emlig_size+1); |
---|
[1219] | 819 | emlig1->add_condition(*condition_vec); |
---|
[1271] | 820 | |
---|
[1272] | 821 | /* |
---|
| 822 | for(polyhedron* toprow_ref = emlig1->statistic.rows[emlig_size]; toprow_ref != emlig1->statistic.end_poly; toprow_ref = toprow_ref->next_poly) |
---|
| 823 | { |
---|
| 824 | cout << ((toprow*)toprow_ref)->probability << endl; |
---|
| 825 | } |
---|
| 826 | */ |
---|
[1275] | 827 | /* |
---|
[1271] | 828 | cout << emlig1->statistic_rowsize(emlig_size) << endl << endl; |
---|
[1268] | 829 | |
---|
[1272] | 830 | /* |
---|
[1271] | 831 | if(i-emlig1->number_of_parameters >= 0) |
---|
| 832 | { |
---|
| 833 | pause(30); |
---|
| 834 | } |
---|
[1272] | 835 | */ |
---|
[1219] | 836 | |
---|
[1271] | 837 | // emlig1->step_me(i); |
---|
[1219] | 838 | |
---|
[1272] | 839 | /* |
---|
[1219] | 840 | vector<int> sizevector; |
---|
| 841 | for(int s = 0;s<=emlig1->number_of_parameters;s++) |
---|
| 842 | { |
---|
| 843 | sizevector.push_back(emlig1->statistic_rowsize(s)); |
---|
| 844 | } |
---|
[1272] | 845 | */ |
---|
[1275] | 846 | //} |
---|
| 847 | |
---|
[1219] | 848 | |
---|
| 849 | |
---|
| 850 | |
---|
| 851 | /* |
---|
| 852 | emlig1->step_me(1); |
---|
| 853 | |
---|
| 854 | vec condition = "2.0 0.0 1.0"; |
---|
| 855 | |
---|
[1208] | 856 | emlig1->add_condition(condition); |
---|
| 857 | |
---|
[1216] | 858 | vector<int> sizevector; |
---|
| 859 | for(int s = 0;s<=emlig1->number_of_parameters;s++) |
---|
| 860 | { |
---|
| 861 | sizevector.push_back(emlig1->statistic_rowsize(s)); |
---|
| 862 | } |
---|
| 863 | |
---|
[1219] | 864 | emlig1->step_me(2); |
---|
[1216] | 865 | |
---|
[1219] | 866 | condition = "2.0 1.0 0.0"; |
---|
[1216] | 867 | |
---|
| 868 | emlig1->add_condition(condition); |
---|
| 869 | |
---|
| 870 | sizevector.clear(); |
---|
| 871 | for(int s = 0;s<=emlig1->number_of_parameters;s++) |
---|
| 872 | { |
---|
| 873 | sizevector.push_back(emlig1->statistic_rowsize(s)); |
---|
| 874 | } |
---|
[1219] | 875 | */ |
---|
[1216] | 876 | |
---|
[976] | 877 | return 0; |
---|
| 878 | } |
---|
| 879 | |
---|
[1282] | 880 | |
---|