<p>In <a href="https://github.com/mlpack/mlpack/pull/742#discussion_r73780975">src/mlpack/methods/preprocess/preprocess_describe_main.cpp</a>:</p>
<pre style='color:#555'>&gt; +    double rowMean = arma::mean(row);
&gt; +    double rowStd = arma::stddev(row, population);
&gt; +
&gt; +    // Print statistics of the given dimension.
&gt; +    Log::Info &lt;&lt; boost::format(numberFormat)
&gt; +        % dimension
&gt; +        % arma::var(row, population)
&gt; +        % rowMean
&gt; +        % rowStd
&gt; +        % arma::median(row)
&gt; +        % rowMin
&gt; +        % rowMax
&gt; +        % (rowMax - rowMin) // range
&gt; +        % Skewness(row, rowStd, rowMean, population)
&gt; +        % Kurtosis(row, rowStd, rowMean, population)
&gt; +        % StandardError(row, rowStd) &lt;&lt; endl;
</pre>
<p>No problem, I think your solution is perfectly reasonable.  Would you like to open a ticket about the <code>Log::Info</code> and <code>std::setw</code> incompatibility?  We don't need to solve it now (or soon), but it would maybe be a good task for someone who is looking for ways to contribute, since it's a pretty self-contained and easy-to-replicate problem. :)</p>

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