We can't find platue in smaller wilson loops for larger smearing steps. we shall find platue with only few or no smearing steps for smaller wilson loops(low R).
The curve fitting needs to be done carefully, we need to make sure that the reduced \(\chi^{2}\) is close to 1 and with maximum number of degree of freedom \(\nu=N_{o}-N_p\), where \(N_{o}\) = number of observations for fitting, and \(N_{p}\) is number of fit parameters used.
We can make use of gnuplot to do curve fitting and plotting. We can also write gnuplot scripts to generate multiple plots from the same file. We write the script with the extension '.gpi', and write the script, run it with gnuplot script.gpi
We can save the gnuplots with '.evs' extension, which is in text format, we can change the .evs file to edit the plots also.