<p>In <a href="https://github.com/mlpack/mlpack/pull/694#discussion_r70025027">src/mlpack/methods/preprocess/preprocess_imputer_main.cpp</a>:</p>
<pre style='color:#555'>> +#include <mlpack/core.hpp>
> +#include <mlpack/core/data/imputer.hpp>
> +#include <mlpack/core/data/dataset_info.hpp>
> +#include <mlpack/core/data/map_policies/increment_policy.hpp>
> +#include <mlpack/core/data/map_policies/missing_policy.hpp>
> +#include <mlpack/core/data/imputation_methods/mean_imputation.hpp>
> +#include <mlpack/core/data/imputation_methods/median_imputation.hpp>
> +#include <mlpack/core/data/imputation_methods/custom_imputation.hpp>
> +#include <mlpack/core/data/imputation_methods/listwise_deletion.hpp>
> +
> +PROGRAM_INFO("Impute Data", "This utility takes a dataset and converts user "
> + "defined missing variable to another to provide more meaningful analysis "
> + "\n\n"
> + "The program does not modify the original file, but instead makes a "
> + "separate file to save the output data; The program requires you to "
> + "specify the file name with --output_file (-o)."
</pre>
<p>Updated</p>
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