Revision 28 - (view) (annotate) - [select for diffs]
Modified Wed May 19 06:06:07 2010 UTC (9 years, 6 months ago) by clausted
File length: 9619 byte(s)
Diff to previous 27 , to selected 20

Changes to params dictionary.  Valid values for 'fixed' are 'fixed' 'float' or an integer.  True and False are no longer acceptable.  Now mutli-ROI curve fitting seems to work!

Revision 27 - (view) (annotate) - [select for diffs]
Modified Wed May 19 01:49:52 2010 UTC (9 years, 6 months ago) by clausted
File length: 9537 byte(s)
Diff to previous 22 , to selected 20

New LMA function in fit_module allows us to simultaneously fit parameters to the data in several ROIs that share that parameter.  This is not yet fully tested.  More comments have been added to ba_class.  The __all__ variable has been added to osprai_one to assist the automatic documentation.

Revision 22 - (view) (annotate) - [select for diffs]
Modified Tue Apr 27 07:17:58 2010 UTC (9 years, 7 months ago) by clausted
File length: 8386 byte(s)
Diff to previous 20

The new module osprai_one provides access to the important functions in all of the other modules.  Documentation has been started with osprai_one.html.

Revision 20 - (view) (annotate) - [selected]
Modified Mon Apr 26 21:59:45 2010 UTC (9 years, 7 months ago) by clausted
File length: 8431 byte(s)
Diff to previous 19

Added clma(), a constrained LMA fitting function.  We can now set a lower and upper bound for fitting.  Be sure that the initial estimate is between, not at, the bounds.  It transforms the parameters using x1 = ((b-a)*tanh(x0)+b+a)/2 for the interval (a,b).  

Revision 19 - (view) (annotate) - [select for diffs]
Added Fri Apr 23 01:45:38 2010 UTC (9 years, 7 months ago) by clausted
File length: 2528 byte(s)
Diff to selected 20

Introduction of the fit_module.  This provides ordinary Levenberg-Marquart curvefitting.  The user can choose which model parameters are fixed and which are allowed to float.  Next, we can add a constrained version.