How do i find the amplitude of a peak in my plot?

8 次查看（过去 30 天）
Alex Sam Thomas
Alex Sam Thomas 2019-3-12
评论： mart benjamin 2021-11-8
I want to find the peak with the most height(not the maximum y value, but the distance from the local minima just before the peak to the peak). Kindly help out.

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2019-3-12
‘I want to find the peak with the most height(not the maximum y value, but the distance from the local minima just before the peak to the peak).’
That seems to be defined by the ‘prominence’ of the peak. You can set a minimum for it as 'MinPeakProminence' (link) if you already know what it is, or you can have findpeaks output it in the p (link) output.

更多回答（1 个）

Raghunandan V
Raghunandan V 2019-3-12
Hello,
Find the slope for each case. When there is change in slope from positive to negative, its a peak. If the slope changes from negetive to positive then its a crust.
formula for slope is (Y2 - Y1) / (X2 - X1)
  2 个评论
Alex Sam Thomas
Alex Sam Thomas 2019-3-12
编辑：Alex Sam Thomas 2019-3-12
thank you for your answer. But I don't want to to see if it is a peak. I have the peaks and i want to find the one with the biggest amplitude.

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

产品


版本

R2018b

Community Treasure Hunt

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

Start Hunting!

Translated by