how to find and mark the value of local minimums in a graph of multiple data ?
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I have a graph of multiple data taken experimentally. Now I want to find the troughs of the graph. I want to show the value of local minimas in the graph. How do I do it?
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Birdman
2018 年 2 月 15 日
Try this:
x=randi([1 7],1,10);
y=randi([3,10],1,10);
plot(x);hold on;plot(y);
[~,idxX]=findpeaks(-x);
[~,idxY]=findpeaks(-y);
plot(idxX,x(idxX),'o');plot(idxY,y(idxY),'o')
hold off;
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