<p>In <a href="https://github.com/mlpack/mlpack/pull/694#discussion_r68385402">src/mlpack/core/data/imputation_methods/listwise_deletion.hpp</a>:</p>
<pre style='color:#555'>&gt; +    {
&gt; +      for (size_t i = 0; i &lt; input.n_rows; ++i)
&gt; +      {
&gt; +         if (input(dimension, i) == mappedValue)
&gt; +         {
&gt; +           output.shed_row(i);
&gt; +         }
&gt; +      }
&gt; +    }
&gt; +    else
&gt; +    {
&gt; +      for (size_t i = 0; i &lt; input.n_cols; ++i)\
&gt; +      {
&gt; +        if (input(dimension, i) == mappedValue)
&gt; +        {
&gt; +          output.shed_col(i);
</pre>
<p>What if there are more than two mappedValue(0.0) in one row?(ex : 0.0 1.0 3.0 4.0 0.0)</p>

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