AREA UNDER CURVE (TRAPZ)
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LET SAY MY DATA LIKE PICTURE ATTACHED. HOW CAN I CALCULATE THE AREA UNDER CURVE UNTIL BASELINE. FOR EXAMPLE:
y1=sin(x)
baseline=y2=3
how do i use trapz? trapz(x,y1) and ?
回答 (2 件)
Siranjeevi Gurumani
2021 年 10 月 23 日
編集済み: Siranjeevi Gurumani
2021 年 10 月 23 日
x = 0:0.1:2*pi;
y1 = sin(x);
y2 = 0.5;%range of sinx between [-1,1]
z = y1 - y2;
z(z<0) = 0;
Area_above_threshold = trapz(x,z)
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