MATLAB: Function: var,mean,std how to use on the matrix

statics

Hy , I have question about,when I get data matrix [ 100 x 4 – size ] In the statistics problems I must do for whole matrix too get mean,std,var functions – for answer the question what is the mean of data ?
data = 100 x 4
V = mean(data,1)
V = 
    1 2 3 4
V2 = mean(V,1)
V2 = 
    2.5000

Best Answer

Use : to convert your matrix to a vector and then use mean, var, etc:
 m = mean(V(:));
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