void doSomething(const std::vector<int> & randFeatures, const std::vector<int>& inBagSamples, const matrix<float>& data ){

        std::vector<std::pair<float, int> > responses;

        std::vector<int>::const_iterator it(randFeatures.begin());
        std::vector<int>::const_iterator end(randFeatures.end());
        while ( it != end )
        {
            responses.clear();
            responses.reserve(inBagSamples.size());
            bagIt = inBagSamples.begin();
            while ( bagIt != bagEnd )
            {
                responses.push_back(std::pair<float, int>(data(*bagIt,*it),*bagIt));
                ++bagIt;
            }
            sort(responses.begin(), responses.end());
            fminRes = responses.front().first;
            fmaxRes = responses.back().first;

            treshdiff = fmaxRes - fminRes;

            if( treshdiff > 0 ){

                curThreshold      = randomDouble(treshmin, treshmax);
                //.......
            }

        }
}