|| || || || || || || ||

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MatKeepSpecificRows.h

Go to the documentation of this file.

#ifndef Impala_Core_Matrix_MatKeepSpecificRows_h
#define Impala_Core_Matrix_MatKeepSpecificRows_h

#include "Core/Matrix/MatFunc.h"
#include "Core/Matrix/Mat.h"

namespace Impala
{
namespace Core
{
namespace Matrix
{


Mat*
MatKeepSpecificRows(Mat* data, std::vector<int>& keepers)
{
    // we have the indices; now copy vectors
    int d = MatNrCol(data);
    Mat* res = MatCreate<Mat>(keepers.size(), d);
    for(int j = 0; j < keepers.size(); j++)
    {
        int k = keepers[j];
        for(int i = 0; i < d; i++)
            *MatE(res, j, i) = *MatE(data, k, i);
    }
    return res;
}


} // namespace Matrix
} // namespace Core
} // namespace Impala

#endif

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