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icb3

USA
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Posted - 06/08/2007 :  4:37:13 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin): 7.0
Operating System: Win 2000

None of the automatic baseline finders consistently work for data sets I typically plot. What does work for me is if I use statistics to find the mean of the first 200 data points and then subtract that value...

This seems like it should be an easy thing to automate, but I have only limited C++ programming experience and none with OriginC or LabScript.

Any suggestions would be greatly appreciated.
Thanks,
Isaac

Mike Buess

USA
3037 Posts
Posted - 06/08/2007 :  5:32:44 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Isaac,

Here's a simple LabTalk script that will do what you want. You can assign it to the Custom Routine button as explained here and run it on the active dataplot in a graph or the highlighted worksheet column.

get %C -e npt; // how many points in active curve?
set %C -e 200; // set end to 200 pts
sum(%C); // stats on curve
set %C -e npt; // reset end
%C -= sum.mean; // subtract mean



Mike Buess
Origin WebRing Member
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icb3

USA
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Posted - 06/09/2007 :  2:42:11 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks Mike - works great!

I think I need to sit down and spend some quality time with the help file.
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