Re: [Gnuplot-info] How to directly sort data and plot

[Clement L. <the...@gm...>]

Hello,

I did this yesterday, in fact.

In gnuplot, issue:

plot "< sort -kn3nr datafile" u 1:3 w lp

This should be roughly what you want.

Clem


On 22 August 2013 08:54, Jian-Ming Zheng <jm...@gm...> wrote:

> Hi,
>
> I have a data file which contains several columns. The data in the
> file are not sorted. I want to sort the data of a column (for example,
> column 3) and plot the data. I use UNIX command sort to sort the data
> and then use gnuplot to plot the data.
>
> $ sort -k3nr datafile > sortfile     # sort column 3 in decreasing order
> gnuplot> plot 'sortfile' u 3 w linespoints     # plot sorted values of
> column 3 at x = 0, 1, 2, …
>
> Is it possible to directly sort the data and plot the results in
> gnuplot? If yes, how to do it?
>
> Thanks
>
>
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