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21.18 2D Histogram Statistics

Function: double gsl_histogram2d_max_val (const gsl_histogram2d * h)

This function returns the maximum value contained in the histogram bins.

Function: void gsl_histogram2d_max_bin (const gsl_histogram2d * h, size_t * i, size_t * j)

This function finds the indices of the bin containing the maximum value in the histogram h and stores the result in (i,j). In the case where several bins contain the same maximum value the first bin found is returned.

Function: double gsl_histogram2d_min_val (const gsl_histogram2d * h)

This function returns the minimum value contained in the histogram bins.

Function: void gsl_histogram2d_min_bin (const gsl_histogram2d * h, size_t * i, size_t * j)

This function finds the indices of the bin containing the minimum value in the histogram h and stores the result in (i,j). In the case where several bins contain the same maximum value the first bin found is returned.

Function: double gsl_histogram2d_xmean (const gsl_histogram2d * h)

This function returns the mean of the histogrammed x variable, where the histogram is regarded as a probability distribution. Negative bin values are ignored for the purposes of this calculation.

Function: double gsl_histogram2d_ymean (const gsl_histogram2d * h)

This function returns the mean of the histogrammed y variable, where the histogram is regarded as a probability distribution. Negative bin values are ignored for the purposes of this calculation.

Function: double gsl_histogram2d_xsigma (const gsl_histogram2d * h)

This function returns the standard deviation of the histogrammed x variable, where the histogram is regarded as a probability distribution. Negative bin values are ignored for the purposes of this calculation.

Function: double gsl_histogram2d_ysigma (const gsl_histogram2d * h)

This function returns the standard deviation of the histogrammed y variable, where the histogram is regarded as a probability distribution. Negative bin values are ignored for the purposes of this calculation.

Function: double gsl_histogram2d_cov (const gsl_histogram2d * h)

This function returns the covariance of the histogrammed x and y variables, where the histogram is regarded as a probability distribution. Negative bin values are ignored for the purposes of this calculation.

Function: double gsl_histogram2d_sum (const gsl_histogram2d * h)

This function returns the sum of all bin values. Negative bin values are included in the sum.


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