How can i get the last element of a maxium with the help of findpeaks?

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Denis Paul
Denis Paul 2020-8-6
评论： Denis Paul 2020-8-6
Hello,
i want to find a maximum with the last element. I want to use findpeaks instead of islocalmax to solve my problem.
So my question is how can i get the last element of a maxium with the help of findpeaks?
Example with findpeaks:
data = [25 8 15 5 6 10 10 10 1 20 7];
x = 1:1:11;
[pks,pksInx] = findpeaks(data);
figure
plot(x,data,'b')
hold on
plot(pksInx,pks,'ko')
hold off
But how it should looks like with islocalmax:
TF1 = islocalmax(data, 'FlatSelection', 'last');
figure
plot(x,data,'b',x(TF1),data(TF1),'ko')
  2 个评论
Denis Paul
Denis Paul 2020-8-6
No, there is not a big reason. I was just interested because its possible with the islocalmax() function and maybe its was possible with the findpeaks() function also. Now i know it isn't.

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采纳的回答

madhan ravi
madhan ravi 2020-8-6
https://www.mathworks.com/help/signal/ref/findpeaks.html#bufhxsk-2
It states:
“For the flat peak, the function returns only the point with lowest index.”

更多回答（1 个）

Mario Malic
Mario Malic 2020-8-6
According to documentation, variable you named pks is a vector that contains values you need. You just need to call the last element of the vector.
pks(end)
  2 个评论
madhan ravi
madhan ravi 2020-8-6
That would just select the last peak. According to what I understood OP wants the last peak if they are the same peaks. Three 10s and OP wants the last 10 instead of the first.

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