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Patch FILTFILT

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If applied to a matrix, the function FILTFILT (Signal Processing Toolbox) calls itself recursively for each column. Internally FILTER is called twice, but this can be performed with a matrix directly to avoid the unnecessary overhead. For a [100 x 100] matrix FILTFILT is about 10 times faster with the patch!

The function PatchFILTFILT creates a copy of the original function and modifies the source such, that matrix arguments are processed directly. After patching the results and the speed are compared.

NOTE: PatchFILTFILT does not contain the original source of FILTFILT, which is property of The MathWorks(R)!

Tested with: Matlab 6.5.1, 7.7 (R2008b), 7.8 (R2009a). It should work with 7.0 to 7.6 also.
For Matlab 7.9 (R2009b) adjustments are needed and I will add this as soon as I will get access to R2009b.

Please contact me per email for problems or questions

Free download from Shareware Connection - If applied to a matrix, the function FILTFILT (Signal Processing Toolbox) calls itself recursively for each column.

Publisher: Jan Simon | License: Freeware | Price: 0.00
Version: 1.0 | Size: 10 KB | Platform: Matlab, Scripts
Released Date: 09-02-2013 | Rating: 0 | Title: Patch FILTFILT

Author Url: http://www.mathworks.com
Program Info Url: http://www.mathworks.com
Download Url: http://www.mathworks.com/matlabcentral/fx_files/25337/1/PatchFILTFILT.zip

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Shareware Connection periodically updates pricing and software information of 'Patch FILTFILT' from company source 'Jan Simon' , so some information may be slightly out-of-date. You should confirm all information before relying on it. Software piracy is theft,  Using 'Patch FILTFILT' crack, password, serial numbers, registration codes, key generators is illegal and prevent future development of Patch FILTFILT.

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