How to normalize curves such that area under curve=1?

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Belal Abboushi 2015-1-21

评论： Image Analyst 2015-1-21

I'm trying to plot three curves such that area under curve =1. I've tried trapz but it only gives me the area and i couldn't change it.

Any idea?

Mohammad Abouali 2015-1-21

编辑：Mohammad Abouali 2015-1-21

divide all numbers by the area that you calculate using Trapz.

x=0:0.1:pi;
y=sin(x);
Area=trapz(x,y)
Area =
      1.9975
y_normalized=y./Area;
trapz(x, y_normalized)
ans =
      1.0000

Image Analyst 2015-1-21

Belal's "Answer" moved here:

You saved my life! Thanks a lot

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