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.