Re: [Gnuplot-info] Operations with data

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

plot "file1.dat" using 1:(2.*$2) w lines, "file2.dat" w lines

what you are searching for is
- the manual:
   http://www.gnuplot.info/docs/gnuplot.html
   http://www.gnuplot.info/docs/node100.html
- help information inside gnuplot:
   help plot


Trillianx wrote:
> 
> I tried searching for this on the forum but could not find it. I believe I
> do not know what to search for. 
> 
> Well, Here is my problem: 
> 
> 1. I have two files "file1.dat" and file2.dat". 
> 2. Each of the files have two columns, x and y. The xrange for both the
> files are the same, while the yrange is normalised to 1.  
> 3. I would like to multiply the y-value in "file1.dat" in order to plot
> both the files one top of the other. 
> 4. Just typing: plot 2*"file1.dat" w lines, "file2.dat" w lines gives me
> error.  
> 
> How do I work this out? 
> 
> 

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