find X of corresponding local minima

1 次查看（过去 30 天）
Sagar Dhage
Sagar Dhage 2014-7-8
评论： Sagar Dhage 2014-7-8
I have Fx values (ie Y) and corresponding T values (X). To findout the local minima, i have used following prog. [Maxima,MaxIdx] = findpeaks(Fx); FxInv = 1.01*max(Fx) - Fx; [c,MinIdx] = findpeaks(FxInv); Minima = Fx(MinIdx); a= Minima(Minima >100); % further find out values of peak of Fx more than 100.
How I can find T values(X), corresponding to a? i tried b=T(a) but it doesn't work

请先登录，再回答此问题。

采纳的回答

Jos (10584)
Jos (10584) 2014-7-8
Finding minima of a signal X is the same as finding the maxima of the signal -X

更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2014-7-8
You can use
[a,idx]=findpeaks(Fx,'MINPEAKHEIGHT',100)
b=T(idx)
  3 个评论
显示 1更早的评论

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Descriptive Statistics 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by