Statistics Toolbox

hist

Plot histograms

Syntax

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

Description

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,...) 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.

The hist function is a part of the standard MATLAB language.

Examples

Generate bell-curve histograms from Gaussian data.

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

harmmean

histfit