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Interactive Derivative

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from Interactive Derivative by Tom O'Haver
Interactive Derivative for time-series signals.

InteractiveDerivativeTest.m 
% Creates a test signal, then calls InteractiveDerivative
% Tom O'Haver, July 2006
x=[0:1000];
noise=.01;
signal=5.*gaussian(x,length(x)/2,200)+noise.*randn(size(x));
InteractiveDerivative

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