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 Local minima and maxima		  New Topic  Reply to Topic
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twhansen

Denmark
3 Posts
Posted - 07/18/2011 :  07:37:00 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): 8.5.1 SR2
Operating System:Win7-64

Hi.

I am trying to find local minima and maxima on a dataset. The dataset is oscillating and decaying. Any good ideas?

Thanks.

Thomas

couturier

France
291 Posts
Posted - 07/18/2011 :  12:34:43 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
The peak analyser will find your local min and max.
You can try different methods and choose the one which best fits your needs.
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twhansen

Denmark
3 Posts
Posted - 07/20/2011 :  08:34:29 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks. That helped. Now I get the maxima, but not the minima. Any ideas?

Thanks fr the assistance.

Thomas
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Hideo Fujii

USA
1582 Posts
Posted - 07/20/2011 :  3:21:26 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Thomas,

Maybe you haven't tried the "Negative" Direction of the peaks (in the Peak Finding Settings option branch) in the "Find Peaks" stage of Peak Analyzer. Can you try?

--Hideo Fujii
OriginLab
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