On Wednesday, 27 January, 2016 16:43:33 [hidden email] wrote:
> I hope I'm not being slow here, but I seem to be having so many problems
> with gnuplot since I moved to Fedora.
> I have some data which plots tine .... until I ask gnuplot to join the
> gnuplot> plot [ f1-.1 : f2+.1] spd_sqrt_v1 u (1/$4):5 w l tit
> "spd_sqrt v1","" u (1/$4):(atan2($2,$3))
> works as expected , one line plot , one with cross marks, now try both
> as line plots:
> "spd_sqrt v1","" u (1/$4):(atan2($2,$3)) w l
> Now I only get the first plot line , the second one is nowhere to be seen.
> Does that make sense to anyone?
At a guess, many of your data points are evaluating to NaN.
Try repeating that last command after doing "set table",
so that you can see the processed coordinates for each point.
> G N U P L O T
> Version 5.0 patchlevel 1 last modified 2015-06-07
> running Fedora 23 gnuplot-wx , the wxt build.
> Thanks, Peter.