sgolayfilt is a replacement for Matlab's sgolay function that just calculates and returns the differentiation filters. The result is 2–4 times faster.

sgolayfilt(K,F) returns the matrix of differentiation filters. The polynomial order, K, must be a integer less than window size, F, which must be an odd integer. If the polynomial order, K, equals F-1, no smoothing will occur. Each of the K+1 columns of the output is a differentiation filter for derivatives of order P-1 where P is the column index.  

Andrew D. Horchler, horchler @ gmail . com, biorobots.case.edu
Created: 12-16-11, Revision: 1.0, 4-7-16

This version tested with Matlab 9.0.0.341360 (R2016a)
Mac OS X 10.11.4 (Build: 15E65), Java 1.7.0_75-b13
Compatibility maintained back through Matlab 7.4 (R2007a)
 

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