Error when taking mean of generated random variables with gamma distribution.

When I try and take the mean of my matrix of random variables I am getting the following error:

"Index in position 1 is invalid. Array indices must be positive integers or logical values.

Error in hw2envstats (line 42)

mean(sample1a,2)"

any ideas on what I may be doing incorrectly would be appreciated.

mean = 1;
stdev = sqrt(1);
skew1 = 0.25;
alpha1= (2/skew1)^2;
beta1 = (alpha1/1)^0.5;
zeta1 = 1 - (alpha1/beta1);
sample1a=gamrnd(alpha1,beta1,10000,10);
mean(sample1a,2)

Answer 1

[Martin C.]

you defined mean = 1. Then you try to use it as a function :)