Undefined function 'awgn' for input arguments of type 'double'

2012 9 18
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I have a similar problem.Weird thing is I had my awgn function working yesterday.But today on the same system it doesn't work.And yes I have my communication systems toolbox installed.(ver tells me that i have the toolbox)
snr=3; x=ones(10,1)'; y=awgn(x,snr); "Undefined function 'awgn' for input arguments of type 'double' " is the response. Should i unlock the Comm Systems toolbox or something?

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Wayne King
Wayne King 2012-9-18

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Does this command return a 1:
license('test','communication_toolbox')
Are you in a networked configuration where only so many licenses can be checked out at once?
If not try:
rehash

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Avinas Vem
Avinas Vem 2012-9-20
The answer was right there. Yes my lab has only a certain licenses that can be checked out at an instance. Thanks a lot Wayne..

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