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Pototo

Comments and Ratings by Pototo		1 - 1 of 1
Updated	File	Comments	Rating
29 Jun 2011	K Nearest Neighbors Program to find the k - nearest neighbors (kNN) within a set of points. Author: Ani	hello, I am imputing some square matrices, but this algorithm is not working. I though that as long as D is the same for both matrices, this would work. Does that mean that N cannot be equal to M at all??? thanks in advance!!!!!!!

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Type	Description
File	fshift

Comments and Ratings Matching Pototo's Watch List			1-4 of 4
Date	File	Comment by	Comments	Rating
24 Mar 2010	fshift Shifts the elements of an array by a (possibly non-integer) given number of elements.	Joshua Carmichael	Never mind, now that I have more carefully read your file, I see that covered the 2*pi factor in the frequency digitization and you are not forcing the signal to be real.	5
22 Mar 2010	fshift Shifts the elements of an array by a (possibly non-integer) given number of elements.	Joshua Carmichael	Helpful. Two comments: (1) Is the frequency domain shift appearing as: exp(-1ispif)'; Suppose to include a factor of 2 to be consistent with Matlab's definition of the fft, so that: exp(-1is2pi*f)'; (2) Concatenate the input signal with it's flipped version, to make it even, to avoid forcing it to be real, then extract the latter half of the signal.	5
25 Apr 2009	fshift Shifts the elements of an array by a (possibly non-integer) given number of elements.	Ahmed Fasih	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().	5
03 Jul 2008	fshift Shifts the elements of an array by a (possibly non-integer) given number of elements.	Matlab User	Thanks, this was helpful	5