Re: [Gnuplot-info] conditional plot

[Jefferson S. E. P. <st...@gm...>]

Yes, the magic exists:

plot "< grep M data.dat"

Cheers,
Stafusa



On Wed, Jun 26, 2013 at 5:13 PM, Mahmood Naderan <nt_...@ya...>wrote:

> Hi
> I have a data file which looks like
>
> 10 20 M
> 30 10 H
> ...
>
> What I want to do is to plot the second column if the third column is 'M'.
> Is it possible to to do that with a magic command (piping plt with grep)
> inside the gnuplot? Or I have to do a preprocess on the data file and
> extract all lines with 'M' value to another file and then plot the new file?
>
> Many thanks for any suggestion.
>
> Regards,
> Mahmood
>
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