本文整理汇总了C++中arma::Mat::cols方法的典型用法代码示例。如果您正苦于以下问题：C++ Mat::cols方法的具体用法？C++ Mat::cols怎么用？C++ Mat::cols使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类arma::Mat的用法示例。
在下文中一共展示了Mat::cols方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Impute
/**
* Impute function searches through the input looking for mappedValue and
* remove the whole row or column. The result is overwritten to the input.
*
* @param input Matrix that contains mappedValue.
* @param mappedValue Value that the user wants to get rid of.
* @param dimension Index of the dimension of the mappedValue.
* @param columnMajor State of whether the input matrix is columnMajor or not.
*/
void Impute(arma::Mat<T>& input,
const T& mappedValue,
const size_t dimension,
const bool columnMajor = true)
{
std::vector<arma::uword> colsToKeep;
if (columnMajor)
{
for (size_t i = 0; i < input.n_cols; ++i)
{
if (!(input(dimension, i) == mappedValue ||
std::isnan(input(dimension, i))))
{
colsToKeep.push_back(i);
}
}
input = input.cols(arma::uvec(colsToKeep));
}
else
{
for (size_t i = 0; i < input.n_rows; ++i)
{
if (!(input(i, dimension) == mappedValue ||
std::isnan(input(i, dimension))))
{
colsToKeep.push_back(i);
}
}
input = input.rows(arma::uvec(colsToKeep));
}
}