| T O P I C R E V I E W |
| kailun |
Posted - 02/25/2006 : 03:56:14 AM
Origin Version (7.5):
Operating System: winxp
the attempt always fails and the program replied, " smooth failed because of inadequate window size or unequally spaced data"
what can i do?
is there any method to find the peak to peak size atmomatically?
thanks in advance
wilson |
| 5 L A T E S T R E P L I E S (Newest First) |
| Mike Buess |
Posted - 02/27/2006 : 07:52:11 AM
Probably easiest with the Pick Peaks tool. Adjust it to find all peaks then locate and add a column to the output worksheet Peaks1. Select the new column, select Set Column Values, enter the expression diff(col(Pky)) in the dialog and click OK.
Mike Buess
Origin WebRing Member |
| kailun |
Posted - 02/27/2006 : 02:25:32 AM
yes, is difference between adjacent peak heights
how can i get it automatically?
thanks a lot |
| Mike Buess |
Posted - 02/25/2006 : 3:01:12 PM
Origin has peak picking routines that will give you the positions of peaks that satisfy given criteria (height, width). Knowing their positions you can find their heights. See the Curve object and peaks() function in the LabTalk reference. You can also use Pick Peaks on the Tools menu. But I'm still not sure what you mean by peak to peak amplitude. Difference between adjacent peak heights?
Mike Buess
Origin WebRing Member
Edited by - Mike Buess on 02/25/2006 3:06:09 PM |
| kailun |
Posted - 02/25/2006 : 2:14:29 PM
dear mike,
the first problem was solved with your help. thanks.
i got data taken from nanoindentation machine which appeared as some peaks. is it possible to find out the peak to peak amplitude automatically?
thanks
wilson |
| Mike Buess |
Posted - 02/25/2006 : 11:16:42 AM
Hi Wilson,
> SG filter requires equally spaced X values. Apparently your data do not satisfy that criterion. One solution would be to interpolate your data (Analysis > Interpolate/Extrapolate) over a range of equally spaced X values and filter the results.
> What do you mean by peak to peak size?
Mike Buess
Origin WebRing Member
Edited by - Mike Buess on 02/25/2006 11:51:11 AM |
