gnuplot-info

[Gnuplot-info] basic conditional plotting

[olivier.abz <05...@rg...>]

Hi all, 

I am stuggling a bit with a conditional plotting and would appreciate a
little help...
My datafile is as follow (only the 2 first line here): 

0.01,0,0.5153,0.2015
0.01,1,-0.2869,0.3255
....
....

My objective is to plot the 3rd variable against the 1st one only if the 2nd
variable is equal to 1.

I've got so far the basic plot function:
gnuplot>plot "/myfile_path/myfile.csv" using 1:3

Does anybody know how I could solve my problem quickly?

Thanks, 

Olivier.
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Re: [Gnuplot-info] basic conditional plotting

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

gnuplot>plot "/myfile_path/myfile.csv" using 1:($2==1?$3:0/0)

see
http://www.gnuplot.info/docs/node58.html


olivier.abz wrote:
> 
> Hi all, 
> 
> I am stuggling a bit with a conditional plotting and would appreciate a
> little help...
> My datafile is as follow (only the 2 first line here): 
> 
> 0.01,0,0.5153,0.2015
> 0.01,1,-0.2869,0.3255
> ....
> ....
> 
> My objective is to plot the 3rd variable against the 1st one only if the
> 2nd variable is equal to 1.
> 
> I've got so far the basic plot function:
> gnuplot>plot "/myfile_path/myfile.csv" using 1:3
> 
> Does anybody know how I could solve my problem quickly?
> 
> Thanks, 
> 
> Olivier.
> 

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