Stemat <stefan.materne <at> physik.tu-muenchen.de> writes:
>
>
> Hello everybody!
> I have the following problem:
> After a series of fits I want to summarize my fit results in a seperate plot
> with every result of the parameter of the various fits depicted as a point.
> Say my parameters are named a1....a7 for the fits I have (all have only one
> parameter of interest)
> I tried the following:
>
> plot '-' w p ls 2
> 1 a1
> 2 a2
> 3 a3
> 4 a4
> 5 a5
> 6 a6
> 7 a7
> e
>
> However, gnuplot just plots the points (0,1),
> (1,2),(2,3),(3,4),(4,5),(5,6),(6,7)
>
> If I explicetly write
>
> plot '-' using 1:2 w p ls 2
> 1 a1
> 2 a2
> 3 a3
> 4 a4
> 5 a5
> 6 a6
> 7 a7
> e
>
> it says ' Skipping data file with no valid points'
> The same happens if i don't try to draw my fitparameters, but explicetly set
> the parameters befor, e.g. a1=3, a2=2, a3 =0,...
>
> So basically the questions: how do I plot parameters as data points?
>
> As a workaround I could also print the results into a table file and load
> this again. How do I do that?
> Using the logfile of the fit is not an option for me as there is too much
> additional information which I would have to delete manually.
>
> I am using gnuplot 4.4 patchlevel 4 on a windows system.
>
> Thank you for your help!
you can't plot the contents of variables by reading the variable
names from a file inside a plot command.
when reading from a file, the plot command expects numbers.
you may write the fit parameters to a file after each individual
fit and plot the data inside this file later.
before the first fit open a file to print the fit parameters into with
set print "some_filename"
after each fit, save the fit parameters (e.g. a and b) with
print a, b
after the fits are done you have a data file containing all the fit
parameters which you may plot
plot "some_filename" using 0:1
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