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Added random number generator to shuffling of values #41

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Merged
wschin merged 1 commit into from
May 12, 2020
Merged

Added random number generator to shuffling of values #41

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8 changes: 4 additions & 4 deletions mf.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1114,11 +1114,11 @@ mf_model* Utility::init_model(mf_int m, mf_int n, mf_int k)

vector<mf_int> Utility::gen_random_map(mf_int size)
{
srand(0);
default_random_engine generator;
vector<mf_int> map(size, 0);
for(mf_int i = 0; i < size; ++i)
map[i] = i;
random_shuffle(map.begin(), map.end());
shuffle(map.begin(), map.end(), generator);
return map;
}

Expand Down Expand Up @@ -4070,10 +4070,10 @@ CrossValidatorBase::CrossValidatorBase(mf_parameter param_, mf_int nr_folds_)
mf_double CrossValidatorBase::do_cross_validation()
{
vector<mf_int> cv_blocks;
srand(0);
default_random_engine generator;
for(mf_int block = 0; block < nr_bins*nr_bins; ++block)
cv_blocks.push_back(block);
random_shuffle(cv_blocks.begin(), cv_blocks.end());
shuffle(cv_blocks.begin(), cv_blocks.end(), generator);

if(!quiet)
{
Expand Down