the min value between two peaks and index of zero-crossing point

Hi Experts, Please check these two graphs here: http://i45.tinypic.com/24pb240.gif In the graph at the top, I am interested in the percentage when the line cross the zero, in the graph below it I am interested in the value and index (in this case percentage) of the valley between two peaks. I appreciate your help Sobhan

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how do you generate the graphs? do you have the data points to generate it in Matlab?

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This question is closed.

Asked:

on 6 Jun 2012

Closed:

on 20 Aug 2021

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