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

[Hans-Bernhard B. <HBB...@t-...>]

On 22.08.2013 09:54, Jian-Ming Zheng 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?

See "help smooth", then "help smooth unique".