| T O P I C R E V I E W |
| Onailime |
Posted - 02/17/2005 : 05:47:12 AM
Origin Version (Select Help-->About Origin): 7.0
Operating System: windows 98 se
Hi,
I have a large number of curves that I would like to automate the fitting of with Origin C. I am trying to use the NLSF in Origin C to do this using the following code borrowed from an example somewhere:
NLSFCntrl nlsfMyFit;// create NLSFcntrl - see OC_Types.h for details
initNLSF(nlsfMyFit); // initialize structure with default initial values
nlsfMyFit.imaxIter=1000;
nlsfMyFit.pasteToPlot = true;
nlsfMyFit.pasteToResults = true;
lstrcpy(nlsfMyFit.szYdataName, strYDataName); // assign fit dataset name
lstrcpy(nlsfMyFit.szFuncName, "lorentz"); // assign fitting function name
fitNLSF(nlsfMyFit);
The problem is that when I ask for the Results (i.e. the first parameter using nlsfMyFit.Par[1])
it returns the initialization parameters whereas the results.
Can someone help me? |
| 2 L A T E S T R E P L I E S (Newest First) |
| Gary Lane |
Posted - 02/17/2005 : 09:15:03 AM
Ciao!
I think NLSFCntrl is an older method that was developed before LabTalk object access was greatly improved in Origin C. Perhaps you might prefer the following in Origin C.
// After this line you should be able to directly use the LabTalk
// NLSF object in Origin C
using NLSF = LabTalk.NLSF;
NLSF.maxIter = 1000;
// etc.
Hope this helps.
Gary
OriginLab
P.S. As Mike said I would first get the latest patch.
Edited by - Gary Lane on 02/17/2005 09:16:44 AM |
| Mike Buess |
Posted - 02/17/2005 : 09:01:32 AM
I'm afraid you've stumbled across an obsolete Origin C method. The following comment is in the header of OC_Types.h in 7.0SR4...
//LAS, 1/31/03 commented out NLSFCntrl; using NLSF = LabTalk.NLSF can be used instead
Before you can use LabTalk.NLSF you must download/apply the SR4 patch...
http://www.originlab.com/index.aspx?s=9&lm=76
Then download the MultiFit add-on in the File Exchange...
http://www.originlab.com/fileexchange/details.aspx?fid=56
Even if it doesn't do exactly what you need at least you'll find some examples for using LabTalk.NLSF in MultiFit.c.
Mike Buess
Origin WebRing Member |
