hist:

Synopsis: Plot a histogram.

Syntax: hist ( A , N, I )

Description:

	Plot a histogram of the data in A in the I:th plot window. 
	A can be a N-column matrix. The columns of A are plotted in 
	histogram fashion.
	An optional second argument, N specifies the number of bins
	to separate the data into. If N is not specified the
	default is 10. 

