Scatter Plot of Local Minimums

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Soeun Lee
Soeun Lee on 20 Jul 2021
Commented: Chunru on 20 Jul 2021
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));
plot(neural.Time,neural.spikes); hold on
line([min(neural.Time) max(neural.Time)],[threshold threshold],'color','r','LineWidth',1)
KSSV on 20 Jul 2021
You specify the number of peaks you want, plot and then see.
Chunru on 20 Jul 2021
Zoom in to your data to see if there is multiple peaks.

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