[mlpack-git] [mlpack/mlpack] DatasetMapper & Imputer (#694)

[Tham]

> +  }
> +
> +  /**
> +   * 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)
> +  {

Now Impute(input, input, mappedValue, ...) is implemented by Impute(input, mappedValue, ...). Benefit of Impute(input, mappedValue, ...) is the users can reuse input, save the cost of allocating new memory.

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