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finding values (X,Y) on a fitted curve

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Fanning

UK
10 Posts

Posted - 01/22/2010 : 07:19:43 AM

I used sigmoidal fit (in origin 7.5) to creat the standard curve for my experiments, with X axis for the concentration of the compound(the result I am after) and Y for the reading from the machine.

I know how to use sigmoidal fit function in tools section to calculate my results manually one by one. However, I have got hundreds of samples to work out. So my question is:

Is there an easy way to calculate the value of a batch of, rather than just one, specific points on the fitted curve?

Thanks a lot

easwar

USA
1965 Posts

Posted - 01/22/2010 : 09:48:52 AM

Hi Fanning,

In the latest version 8.1, one can set up the analysis on one curve, save the settings (including finding x from y or y from x for multiple points from fit curve) as an Analysis Template and then perform Batch Processing to process multiple datasets/files without doing any programming. You can watch a video tutorial on this feature here:
http://originlab.com/index.aspx?s=9&lm=407&pid=1559

In 7.5 the same could be done with programming either using LabTalk script or Origin C.

Please contact your Origin tech support office in UK if you need further help.

Easwar
OriginLab

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