[mlpack-git] [mlpack/mlpack] DatasetMapper & Imputer (#694)
Ryan Curtin
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Fri Jul 22 10:00:08 EDT 2016
> + {
> + output(target.first, target.second) = mean;
> + }
> + }
> +
> + /**
> + * Impute function searches through the input looking for mappedValue and
> + * replaces it with the mean of the given dimension. The result is overwritten
> + * to the input matrix.
> + *
> + * @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,
I agree, I think the self-assignment check could have some inefficiency, but I am not sure. It would be pretty easy to run a quick check. I would run a check in medium to high dimensions (like 50 or more).
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