Segmenting data based on multiple min and max value
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Hello, I have the following xlsx file (x,y). I want to separate every section of the curve ( 4 downard, 4 upward) part separate data file so that I can plot as different curve and merge them. So could anyone please suggest, how can I do segmentation based on multiple minima or maxima.
Thank you
3 Comments
infinity
on 20 Jun 2019
Hello,
Here is my idea.
First, we can sort the data such that x increases from 0 to 3 if your data have not already been sorted.
Then, we find the maximum value of y for x > 1 if we did not know it.
To find the maximum of y for x within [1 3], you can just
- store your data with another varibale, let say "temp", in which x > 1.
- use max fucntion for "temp"
When you have this value, you can use "for" and "if" to split what you want.
Best regards,
Trung
Answers (1)
KSSV
on 20 Jun 2019
Read about findpeaks. It will give indices and values of the maximas. From the indices you take next and before values.
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