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Laurson
Estonia
6 Posts |
 Posted - 03/22/2016 : 1:50:56 PM
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Hi
Why happened so that sometimes program calculated negative hidden peaks, also then when are allowed only positive.
What can I do to get only positive calculation.
Regards
Peeter
Origin Ver. and Service Release (Select Help-->About Origin):
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meili_yang
103 Posts |
Posted - 03/22/2016 : 2:40:06 PM
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Hi Laurson,
If to search peaks, in the Peak Analyzer dialog and at Find Peaks page, there is option of Direction where you can set to find positive peaks only, see below:
If to fit peaks, also in Peak Analyzer tool and at Fit Peaks (Pro) page, click on Fit Control button on the bottom then it opens a Peak Fit Parameters dialog to play with fitting including parameters.
To fit with positive peaks, just apply a lower boundary on the area parameter, e.g. A__1>0. From there you can right click on that row, and choose Apply Same Bounds to All A, see below image.
Hope it helps.
Meili
OriginLab Tech Support |
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How rule out negative hidden peaks