Find the partial minimums in a set of values

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marco mendez
marco mendez on 6 Nov 2019
Edited: marco mendez on 6 Nov 2019
Hi everyone! I have the graphics i show you in the image and i would like to know the distance betwen the two minimum point in the middle of the graph. I mean betwen around 30 and 60. How could i find this points? I have thought I could aproximate to a polynomial function and find the minimums...
untitled.jpg

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Accepted Answer

darova
darova on 6 Nov 2019
  • Use findpeaks(-data)
  • Choose peaks that lie in 23 < x < 27 and 58 < x < 62
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Steven Lord
Steven Lord on 6 Nov 2019
I'd probably use islocalmin instead of findpeaks on the negative of the data.
marco mendez
marco mendez on 6 Nov 2019
Edited: marco mendez on 6 Nov 2019
much better, thanks Steven! Although I solved it using -data...

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