hist (Statistics Toolbox)

hist	Examples See Also

Plot histograms.

Syntax

hist(y)
hist(y,nb)
hist(y,x)
[n,x] = hist(y,...)

Description

hist calculates or plots histograms.

hist(y) draws a 10-bin histogram for the data in vector y. The bins are equally spaced between the minimum and maximum values in y.

hist(y,nb) draws a histogram with nb bins.

hist(y,x) draws a histogram using the bins in the vector, x.

[n,x] = hist(y), [n,x] = hist(y,nb), and [n,x] = hist(y,x) do not draw graphs, but return vectors n and x containing the frequency counts and the bin locations such that bar(x,n) plots the histogram. This is useful in situations where more control is needed over the appearance of a graph, for example, to combine a histogram into a more elaborate plot statement.

Examples

Generate bell-curve histograms from Gaussian data.

x = -2.9:0.1:2.9;
y = normrnd(0,1,1000,1);
hist(y,x)