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<a name="Histogram-Statistics"></a>
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<h3 class="section">21.6 Histogram Statistics</h3>
<p><a name="index-histogram-statistics-1877"></a><a name="index-statistics_002c-from-histogram-1878"></a><a name="index-maximum-value_002c-from-histogram-1879"></a><a name="index-minimum-value_002c-from-histogram-1880"></a>
<div class="defun">
— Function: double <b>gsl_histogram_max_val</b> (<var>const gsl_histogram * h</var>)<var><a name="index-gsl_005fhistogram_005fmax_005fval-1881"></a></var><br>
<blockquote><p>This function returns the maximum value contained in the histogram bins.
</p></blockquote></div>
<div class="defun">
— Function: size_t <b>gsl_histogram_max_bin</b> (<var>const gsl_histogram * h</var>)<var><a name="index-gsl_005fhistogram_005fmax_005fbin-1882"></a></var><br>
<blockquote><p>This function returns the index of the bin containing the maximum
value. In the case where several bins contain the same maximum value the
smallest index is returned.
</p></blockquote></div>
<div class="defun">
— Function: double <b>gsl_histogram_min_val</b> (<var>const gsl_histogram * h</var>)<var><a name="index-gsl_005fhistogram_005fmin_005fval-1883"></a></var><br>
<blockquote><p>This function returns the minimum value contained in the histogram bins.
</p></blockquote></div>
<div class="defun">
— Function: size_t <b>gsl_histogram_min_bin</b> (<var>const gsl_histogram * h</var>)<var><a name="index-gsl_005fhistogram_005fmin_005fbin-1884"></a></var><br>
<blockquote><p>This function returns the index of the bin containing the minimum
value. In the case where several bins contain the same maximum value the
smallest index is returned.
</p></blockquote></div>
<p><a name="index-mean-value_002c-from-histogram-1885"></a>
<div class="defun">
— Function: double <b>gsl_histogram_mean</b> (<var>const gsl_histogram * h</var>)<var><a name="index-gsl_005fhistogram_005fmean-1886"></a></var><br>
<blockquote><p>This function returns the mean of the histogrammed variable, where the
histogram is regarded as a probability distribution. Negative bin values
are ignored for the purposes of this calculation. The accuracy of the
result is limited by the bin width.
</p></blockquote></div>
<p><a name="index-standard-deviation_002c-from-histogram-1887"></a><a name="index-variance_002c-from-histogram-1888"></a>
<div class="defun">
— Function: double <b>gsl_histogram_sigma</b> (<var>const gsl_histogram * h</var>)<var><a name="index-gsl_005fhistogram_005fsigma-1889"></a></var><br>
<blockquote><p>This function returns the standard deviation of the histogrammed
variable, where the histogram is regarded as a probability
distribution. Negative bin values are ignored for the purposes of this
calculation. The accuracy of the result is limited by the bin width.
</p></blockquote></div>
<div class="defun">
— Function: double <b>gsl_histogram_sum</b> (<var>const gsl_histogram * h</var>)<var><a name="index-gsl_005fhistogram_005fsum-1890"></a></var><br>
<blockquote><p>This function returns the sum of all bin values. Negative bin values
are included in the sum.
</p></blockquote></div>
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