Generate multiple random numbers in MatLab?

How do I generate multiple exponential random variables in matlab?

I know the code:

exprnd(mu)

but lets say I want 1000 random variables, how can I do this so I don't have to keep typing out "exprnd(mu)" 1000 times?

EDIT: Is it simple a matrix (like maybe 10 x 100 or something) and then there obviously would be a 1000 numbers in this matrix?

Answer 1

[Wayne King]

   mu = 1;  
   x = exprnd(mu,1000,1);
   hist(x)

MATLAB random number generators all work like this; this is documented in the command line help and the documentation. Have you read that?

Answer 2

[Daniel Shub]

Not to be rude, but have you read the help?

 EXPRND Random arrays from exponential distribution.
    R = EXPRND(MU) returns an array of random numbers chosen from the
    exponential distribution with mean parameter MU.  The size of R is
    the size of MU.

    R = EXPRND(MU,M,N,...) or R = EXPRND(MU,[M,N,...]) returns an
    M-by-N-by-... array.

It seems to me to be pretty clear. The first method says you can do

R = exprnd(mu*ones(1000, 1));

while the second method says you can also do

R = exprnd(mu, 1000, 1);