Undefined function or method 'decimate' for input type 'double'

I have recently installed R2010b on 64-bit Window 7. It seems that something is utterly wrong with the set up. Although I do have the signal processing toolbox and have added its path to the current path, I keep getting this error message as below,

*>>decimate(1:1000,10) ??? Undefined function or method 'decimate' for input arguments of type 'double'.*

what is wrong with it? I can even open the 'decimate' function file. However, I cannot use it because of this error. How can I fix this problem?

Your answers would be appreciated a lot.

-- SK

Answer 1

[Azzi Abdelmalek]

Have you a signal processing toolbox? check it in Matlab command with

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