In theory you can add your own functions but this requires knowing C code
and being able to re-compile it (and if you have a pre-compiled release
this might not work so easily dependent on your system setup).
In v3 I am planning on making this all happen in Python so that it will be
easier for you to do this.
The good news is that I added the function C - A exp(-Bx) to version 2.3.0
Analysis so if you download that you should be able to do what you want
except that it won't force A to be C, so hopefully that is not crucial
for you. (Obviously if the fitting is working and the data is ok then if
your curve really is that then the fit should make A approximately the
same as C.)
On Thu, 18 Jul 2013, Andras Boeszoermenyi wrote:
> Dear all,
> I am trying to calculate T1 from a series of T1 relaxation experiments. The spectra were
> recorded in a way that the signal intensity increases with delay time instead of
> As a consequence I would need a function of the form:
> Is there a way to write our own fitting functions for data analysis, or would it be
> possible to get a function like this?
> I am working with version 2.2.2 on an OS X 10.8.4
> Andras Boeszoermenyi