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How I can find the time between two points on a signal.

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Khalid Mahmood
Khalid Mahmood 2013-12-30
编辑： Wayne King 2013-12-30
I need to find the time between the first and last exceedence of absolute 0.05g on earthquake accelerogram. Please guide how I can do that?

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Wayne King
Wayne King 2013-12-30
编辑：Wayne King 2013-12-30
I'm just using a simulated signal, x, substitute you signal for x in the calls to find()
x = 0.05*randn(100,1);
idx1 = find(abs(x)>0.05,1,'first');
idx2 = find(abs(x)>0.05,1,'last');

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