[Gnuplot-info] GNUPLOT - Fitting Multiple Text files

[super z. <zac...@ya...>]

Hi all

I am trying to fit a function that takes data from two files.  Is there a
way to do this using GNUPLOT?

For example:  

I am trying to fit a lightcurve by considering light coming from two
sources, lets call them A & B.  

I thus have two text files A.dat & B.dat that each contain three columns:
time / flux / flux error

I have an equation I want to fit to these data files that roughly equates to
(though is actually more complicated):

total_flux(x) = K*flux_A(x) + L*flux_B(x)         where K & L are constants
I want to determine by fitting.

Is there a way to do this?  I have discovered "fit multi-branch" but that
seems to fit the same equation to two datasets, which is not the same as
what I am trying to do here.

Many thanks in advance.

Best,
Zach
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