Re: [Gnuplot-info] Re cognize end-of-file in iterations

[Thomas S. <t.s...@fz...>]

set 'min=10**10' at the beginning of each file:

plot ... using ($0==0?min=10**10:min=min , $1):($3/grab($3))


warpino wrote:
> 
> Hi all,
> 
> I have some datafiles all named disy.100 in different directories and I
> want
> to plot them all using column 1 vs 3 the latter being divided for the
> minimum value in each datafile.
> 
> After googleing a bit, for a single file I managed to do:
> 
> min=10**10
> grab(x)=x<min?min=x:min=min
> plot 'disy.100' u 1:($3/grab($3))
> 
> and that's fine.
> 
> Now I want to do it iteratively starting from the parent directory:
> 
> list=system("ls")
> min=10**10
> grab(x)=x<min?min=x:min=min
> plot for[i in list] i.'/disy.100' u 1:($3/grab($3))
> 
> but in this case min gets the minimum value of columns 3 of ALL datafiles
> to
> be plotted, while I want it to be the minimum for each dataset.
> Do you have any suggestions for doing that other than processing the files
> through awk first?
> 
> Thanks for your help!
> 
> w.
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