<p>In <a href="https://github.com/mlpack/mlpack/pull/694#discussion_r66954089">src/mlpack/core/data/impute_strategies/mean_strategy.hpp</a>:</p>
<pre style='color:#555'>> + * @param dimension
> + * @param index
> + * @param transpose
> + */
> + template <typename MatType>
> + void Impute(const MatType &input,
> + MatType &output,
> + const size_t dimension,
> + const size_t index,
> + const bool transpose = true)
> + {
> + if (transpose)
> + {
> + // TODO: The mean must be calculated
> + // without NaN or target missing variable.
> + MatType meanMat = arma::mean(input, 1);
</pre>
<p><a href="https://github.com/stereomatchingkiss" class="user-mention">@stereomatchingkiss</a><br>
Thanks for the comment! <br>
oh, you're right. I was thinking we can iterate through the dimension here.<br>
What do you mean by store mapper to help us filter out the NaN or target missing variable?<br>
could you clarify this?</p>
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