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Ahmed Fasih

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25 Apr 2009 fshift Shifts the elements of an array by a (possibly non-integer) given number of elements. Author: Francois Bouffard

I had to remove the following from the function: "if isreal(x); y = real(y); end;". With this gone, the output of the fft() of a complex exponential is exactly equal to an fshift()ed sinc().
18 Nov 2008 Obs. from Arbitrary PDF Generate a sample from an arbitrary PDF. Author: Dave Dykes

Valuable code to have.

Code can be made faster by vectorizing the while loop, and also to return multiple draws from the distribution. Just make sure to validate your modifications with a non-symmetric distribution like a beta.

This technique of random number generation is discussed here: http://en.wikipedia.org/wiki/Inverse_transform_sampling
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delay, dft, fft, fourier, phase
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07 Nov 2006 fshift Shifts the elements of an array by a (possibly non-integer) given number of elements. Author: Francois Bouffard fractional, utilities, shift, noninteger, matrices, circular 16 4
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