Scatter Plot of Local Minimums

I'm trying to create a scatter plot using the local minima of the graph. However, it also marks a bunch of other points that are not minima. Please kindly let me know what is wrong with my code.
threshold = -0.0001;
[pks,locs] = findpeaks(-neural.spikes,'MinPeakHeight',abs(threshold));
figure
plot(neural.Time,neural.spikes); hold on
line([min(neural.Time) max(neural.Time)],[threshold threshold],'color','r','LineWidth',1)

2 个评论

You specify the number of peaks you want, plot and then see.
Zoom in to your data to see if there is multiple peaks.

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2021-7-20

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2021-7-20

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