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Finding first 5 maxima and its consecutive minima.

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Jay Vaidya
Jay Vaidya el 19 de Nov. de 2020
Comentada: Walter Roberson el 18 de Dic. de 2020
I have the signal in the plot which is zoomed in a time window to show the peaks. I want to find not only the maxima (I did this using
findpeaks()
) but also it's consecutive minimas. Meaning, the first 5 maximas and the two minimas around each first 5 maxima.
I am not able to find minimas. I tried inverting the signal and using findpeaks(), but still merging it with the data of maximas in order is something that I am still not able to do. Can I find maximas and minimas using diff() or derivative rise and fall and store the positions in sequence in one flow?

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Swetha Polemoni
Swetha Polemoni el 23 de Nov. de 2020
Editada: Swetha Polemoni el 23 de Nov. de 2020
Hi Jai Vaidya,
You can use "islocalmin" to find minima.
Here is an example that uses "findpeaks" to find minima.
Hope this helps.

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