How do I juxtapose the two plots so that the circles indicating the peak amplitude is in contrast with the plot?

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Ronica Lilia Pascua
评论： Turlough Hughes 2022-2-1
How do I juxtapose the two plots so that the circles indicating the peak amplitude is in contrast with the plot?
figure (5), plot(t,Ca,'Color','r'), ylabel('Ca (mM)'), xlabel('Time (ms)')
[pks,locs] = findpeaks(Ca)
hold on;
plot(locs,pks,'o');

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采纳的回答

Star Strider
Star Strider 2022-2-1
Try this —
plot(t(locs),pks,'o');
The reason is that with this findpeaks call:
[pks,locs] = findpeaks(Ca)
The ‘locs’ output returns the indices of the peaks. There is nothing wrong with that, and I prefer it, however it just needs to be borne in mind to provide the correct references to the various variables.
.

更多回答（1 个）

Turlough Hughes
Turlough Hughes 2022-2-1
Ran in:
You need to include t in your call to findpeaks. For example:
t = linspace(0,1,1000);
Ca = t./exp(t).*(1-sin(2*pi*t*20));
plot(t,Ca)
[pks,locs] = findpeaks(Ca,t);
hold on;
plot(locs,pks,'o');

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