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Merge pull request #5281 from ilya-lavrenov:ml2

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This commit is contained in:
Alexander Alekhin 2015-09-02 11:38:45 +00:00
commit ae0d428b62
1 changed files with 8 additions and 0 deletions
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8
modules/ml/src/gbt.cpp
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@ -1292,13 +1292,18 @@ CvGBTrees::calc_error( CvMLData* _data, int type, std::vector<float> *resp )
return -FLT_MAX;
float* pred_resp = 0;
bool needsFreeing = false;
if (resp)
{
resp->resize(n);
pred_resp = &((*resp)[0]);
}
else
{
pred_resp = new float[n];
needsFreeing = true;
}
Sample_predictor predictor = Sample_predictor(this, pred_resp, _data->get_values(),
_data->get_missing(), _sample_idx);
@ -1331,6 +1336,9 @@ CvGBTrees::calc_error( CvMLData* _data, int type, std::vector<float> *resp )
err = err / (float)n;
}
if (needsFreeing)
delete[]pred_resp;
return err;
}