MATLAB Function Reference

histogram

Compute a histogram

Syntax

Description

The discriptor describes the cells of the histogram. The discriptor consists of three elements [lower,upper,ncell]. The default values are lower=min(x)-delta/2, upper=max(x)+delta/2 and ncell=ceil(sqrt(length(x))), where delta=(max(x)-min(x))/(length(x)-1).

Its assumed that lower < upper and ncell >= 1. Futhermore its assumed that x is a row vector.

The result is a row vector containing the histogram of x. The index of the histogram cells is computed by index = round( (x(i)-lower) / (upper-lower) * ncell ) + 1/2. If the index is out of the range 1 <= index <= ncell, consequently x(i) < lower or upper <= x(i), the element of x(i) is excluded from the histogram.

See Also

histogram2

Literature

None

Source code

histogram.m

MATLAB Function Reference


Copyright R. Moddemeijer