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T O P I C R E V I E W
peter.cook	Posted - 05/23/2005 : 2:05:16 PM Origin Version (Select Help-->About Origin): 7.5 Sr5 Operating System: Win 2000 Hi, I'm writing an app to fit upto 15 dose response datasets to the four parameter logistic with the option of sharing a parameter (curve top). I'd appreciate help with a few questions, thanks. i) What is the limit on the number of datasets and parameters you can use? ii) How best to set up constraints for each parameter. 2 scenarios could be the midpoint for all datasets has the same constraints or they are all potentially different. iii) I really like LabTalk's substitution eg loop(NumSet,1,15) { nlsf.fitdata$(NumSet)=Data_Resp$(NumSet); } V short! Can this be done in a similar way with C or do I spell them all out? In this case the user will want to select any number from 1-15 sets. Cheers, pete
1 L A T E S T R E P L I E S (Newest First)
peter.cook	Posted - 05/24/2005 : 08:30:37 AM Hi, I forgot code I've already been using eg using that provided by Scott for multiple linear fits as in http://www.originlab.com/forum/topic.asp?TOPIC_ID=3879 eg for(int ii = 1; ii <= nPlots; ii++) { nlsf.FitData$(ii)$ = vecYNames[ii - 1]; } I guess my question should have been : Is this form substitution limited to LabTalk objects? Cheers, Pete

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