| T O P I C R E V I E W |
| carboran |
Posted - 03/06/2014 : 04:32:41 AM
Hello
i have a data set of points, which give the following curve:
(a line connects just the points (no function))
and currently plotted with excell
https://www.dropbox.com/s/lh6qpwtmunc6m25/I20C_curve.jpg
Now what i wanna do with the data set: i wanna determine all the (x-axis) distances between the single zick zack maximas.
as you see not every single zick zack expresses an obvious tip/peak
is there a possibility to determine the distances without calculating manually the single difference?
with regards |
| 2 L A T E S T R E P L I E S (Newest First) |
| carboran |
Posted - 03/07/2014 : 2:58:51 PM
its simple:
this is the answer
http://wiki.originlab.com/~originla/howto/index.php?title=Tutorial:Picking_and_Marking_Peaks
why havent i thought on the word "label peaks" before?
what a shame
with regards |
| greg |
Posted - 03/06/2014 : 10:45:46 AM
There is no one separation value, so the FFT of your data will give you a distribution of the separation values. You should find some small peaks at about 10% of the Frequency range in your FFT plots.
When you find peaks in the FFT plots, 1/PeakCenter represents the separation value in your original curve.
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