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15.5.473 quantile

quantile(quantile, data [, axes])

Returns a particular quantile of the data along the indicated axes, i.e., that data value that exceeds in value a fraction quantile of all compared data values. quantile must be a number between 0 and 1.

quantile(0, data, axes) is equivalent to min(data, axes), quantile(1, data, axes) to max(data, axes), and quantile(0.5, data, axes) to median(data, axes). However, use of quantile to calculate minima or maxima is not recommended, because quantile always sorts the data while looking for the desired quantile, whereas min and max do not do that and are therefore faster.

See also: median, ordfilter, min, max