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T O P I C R E V I E W
lanser
Posted - 02/13/2009 : 07:04:35 AM Hello.
My question concerns the subject of nonlinear fitting of extremely large datasets (1D function with about 100 000 records in workbook). Origin help says that the method of Levenberg-Marquardt is used for this purpose. Does Origin use some preprocessing of large datasets (mostly functions to reduce the dataset) before the application of L-M? And if does, what is that algorithm? I will be very glad to obtain some references too.
Thank in advance.
1 L A T E S T R E P L I E S (Newest First)
Deanna
Posted - 02/15/2009 : 8:36:29 PM Hi Lanser,
Origin's curve fitting tool does not perform any preprocessing on input data.