how do i find the matching data for locs when using findpeaks()

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chengwei zhang 2020-2-5

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评论： chengwei zhang 2020-2-5

采纳的回答： Adam Danz

CeramicRe.txt

I am using the function

[pks,locs]=findpeaks()

and the locs returns the position of that pks in the data when plotting

but what I want is plotting the pks and the other coloum in the data not the locs as the x-axis

thanks in advance

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KSSV 2020-2-5

What do you mean by plotting the pks and the other coloum in the data?

chengwei zhang 2020-2-5

in the CeramicRe.txt, there are two coloums of data, the one on the right side is the pks and the left side is time, but the code i used only return the pks with its position number in the data but i want to plot the pks vs. time

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采纳的回答

Adam Danz 2020-2-5

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https://ww2.mathworks.cn/matlabcentral/answers/503715-how-do-i-find-the-matching-data-for-locs-when-using-findpeaks#answer_413852

编辑：Adam Danz 2020-2-5

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If your peaks plot is produced by

plot(time, data)

and you're locating the peaks with

[pks,locs]=findpeaks(data);

Then, to plot the peaks as a function of time,

plot(time(locs), pks, '*')

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chengwei zhang 2020-2-5

thank you very much. you just saved my life :)

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