Why function "exprnd" is not available in matlab R2008b

2013 1 15
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Walter Roberson
Walter Roberson 2013-1-15

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exprnd is part of the Statistics Toolbox, which is an optional product for Commercial and Academic licenses.
The Statistics Toolbox is included in the Student Version licenses but the Toolbox might not be installed by default. I note that you are using R2008b, which has the only Student Version release (so far) that ends in 'b', so you might be using Student Version.
exprnd is part of the R2008b Statistics Toolbox.

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Bolong
Bolong 2013-1-15
Thanks for your answer, that means I probably need to install a "student version" matlab product if I want to use the function exprnd?
Tom Lane
Tom Lane 2013-1-15
I don't think I'd be giving away valuable secrets by telling you that exprnd is a relatively simple function:
>> rng(0)
>> exprnd(5,2,3)
ans =
1.0245 10.3184 2.2915
0.4947 0.4530 11.6374
>> rng(0)
>> -5*log(rand(2,3))
ans =
1.0245 10.3184 2.2915
0.4947 0.4530 11.6374

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