# Statistics¶

## Extremal values¶

 amin (a[, axis, out]) Return the minimum along an axis. amax (a[, axis, out]) Return the maximum along an axis. nanmax (a[, axis]) Return the maximum of array elements over the given axis ignoring any NaNs. nanmin (a[, axis]) Return the minimum of array elements over the given axis ignoring any NaNs. ptp (a[, axis, out]) Range of values (maximum - minimum) along an axis.

## Averages and variances¶

 average (a[, axis, weights, returned]) Return the weighted average of array over the specified axis. mean (a[, axis, dtype, out]) Compute the arithmetic mean along the specified axis. median (a[, axis, out, overwrite_input]) Compute the median along the specified axis. std (a[, axis, dtype, out, ...]) Compute the standard deviation along the specified axis. var (a[, axis, dtype, out, ...]) Compute the variance along the specified axis.

## Correlating¶

 corrcoef (x[, y, rowvar, bias]) Return correlation coefficients. correlate (a, v[, mode]) Discrete, linear correlation of two 1-dimensional sequences. cov (m[, y, rowvar, bias]) Estimate a covariance matrix, given data.

## Histograms¶

 histogram (a[, bins, range, normed, ...]) Compute the histogram of a set of data. histogram2d (x, y[, bins, range, normed, ...]) Compute the bidimensional histogram of two data samples. histogramdd (sample[, bins, range, normed, ...]) Compute the multidimensional histogram of some data. bincount (x,weights]) Return the number of occurrences of each value in x. digitize (x,bins) Return the index of the bin to which each value of x belongs.

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