[Gnuplot-info] for loop iterating functions

[stibala <ada...@gm...>]

Hello, 
I have a matrix data set, each column contains a curve and I have a function
fitted to each curve.
I need to plot the original curves minus the respective fitted function and
here comes the problem.
My wanted code with for loop is
 p for [i=2:11] "data.txt"  u 1:(column(i) - function>i<($1))
so I can't imagine how to iterate through my functions numbered as the
corresponding columns in data.
It can be done without the loop simply
p "data.txt" u 1:($2 - function2($1)), "data.txt" u 1:($3 - function3($1)),
...
but I would like to plot it within the loop because I have a lot of data.
All the functions are the same, but with different constants, for example
g2(x)=exp(a2*x+b2)+c2 and g3(x)=exp(a3*x+b3)+c3.

Thank you for your help

Adam Stíbal



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