how to calculate the probability under a pdf curve and divide it into different sections (areas)?

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kas
kas el 2 de Nov. de 2015
Comentada: Petar Pavic el 5 de Mayo de 2018
I have a few probability plots both pdf and cdf such as weibull or gaussian probabilities. the x axis is between some numbers. I divide the pdf plot into different parts (four parts). when how can i find the area underneath each of this sections? the some of all four sections should be 1.

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Udit Gupta
Udit Gupta el 2 de Nov. de 2015
Assuming you have the curves as a matlab vector, you can use the trapz function to find area under it.
See http://www.mathworks.com/help/matlab/ref/trapz.html

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