The Multi-peak Fit 2 package does make it possible to add a peak shape or a baseline function. It isn't as easy as I wish it were, but it is possible. The help file for the package describes it:
DisplayHelpTopic "Adding Your Own Peak Function"
DisplayHelpTopic "Adding Your Own Baseline Function"
With the latest version of Multi-peak Fit 2, you can re-visit a previous set by selecting it from the Start panel. So far, I haven't added the ability to load peaks form another set as the initial guess.
[quote=gzvitiello]How can I acess the multi-peak fit 2 package?[/quote]
If you have Igor 6.21 or later, pull down the Analysis menu and select Packages->Multipeak Fitting->Multipeak Fitting 2.
[quote]Do I need the lastest version of Igor?[/quote]
Nearly- you need 6.21 or later. We are shipping 6.22a, and that is a free update.
[quote]How can I fit 2D data?[/quote]
Multipeak Fit does not support multivariate fitting. If you wish to do a series of 1D fits to all the columns or rows of a matrix, it is possible with some effort to do it using functions that are part of the Multipeak Fit package. Igor itself supports multivariate fitting with little effort.
[quote]Can I create my fitting functions?[/quote]
Yes. For regular fitting, it is quite easy. For Multipeak fitting, it is harder.
Thanks
November 4, 2011 at 08:22 am - Permalink
DisplayHelpTopic "Adding Your Own Peak Function"
DisplayHelpTopic "Adding Your Own Baseline Function"
With the latest version of Multi-peak Fit 2, you can re-visit a previous set by selecting it from the Start panel. So far, I haven't added the ability to load peaks form another set as the initial guess.
John Weeks
WaveMetrics, Inc.
support@wavemetrics.com
November 4, 2011 at 10:20 am - Permalink
How can I fit 2D data? Can I create my fitting functions?
November 7, 2011 at 11:06 am - Permalink
If you have Igor 6.21 or later, pull down the Analysis menu and select Packages->Multipeak Fitting->Multipeak Fitting 2.
[quote]Do I need the lastest version of Igor?[/quote]
Nearly- you need 6.21 or later. We are shipping 6.22a, and that is a free update.
[quote]How can I fit 2D data?[/quote]
Multipeak Fit does not support multivariate fitting. If you wish to do a series of 1D fits to all the columns or rows of a matrix, it is possible with some effort to do it using functions that are part of the Multipeak Fit package. Igor itself supports multivariate fitting with little effort.
[quote]Can I create my fitting functions?[/quote]
Yes. For regular fitting, it is quite easy. For Multipeak fitting, it is harder.
John Weeks
WaveMetrics, Inc.
support@wavemetrics.com
November 8, 2011 at 12:41 pm - Permalink