On 10/7/13 2:44 PM, Magnus Danielson wrote:
Which reminds me, there is a nifty tool called fityk that I tend to use
just to view graphs, but has a rather nice set of routines to do various
fits to various curves.
gnuplot's not bad, either..
you define a function f(x) and the free parameters, define some starting
values, kick off the fit, and let it roll.
so I did
f(x) = a + b*x + c*exp(d*x)
with some starting values picked by eye
and it did an ok job with the fit.
It is NOT speedy though.. It's an iterative solution and takes a good 30
seconds on my macbook air to fit the 6000 data points I have.
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