mean (Statistics Toolbox)

mean	Examples See Also

Average or mean value of vectors and matrices.

Syntax

m = mean(X)

Description

mean calculates the sample average.

For vectors, mean(x) is the mean value of the elements in vector x. For matrices, mean(X) is a row vector containing the mean value of each column.

Example

These commands generate five samples of 100 normal random numbers with mean, zero, and standard deviation, one. The sample averages in xbar are much less variable (0.00 ± 0.10).

x = normrnd(0,1,100,5);
xbar = mean(x)

xbar =


    0.0727    0.0264    0.0351    0.0424    0.0752