Re: [Gnuplot-info] plotting 4 column data

[Ashenafi D. <ash...@gm...>]

Thankyou Hans,

I tried to do it but I couldn't get what I wanted. The plot u 1:2:3 will be
covered by the one u 1:2:4. By the way the values of column 3 vary between =
-
0.5 to 0.5 but that of column 4 lies b/n -1 and 1(the values actually are
very close to zero except for a fepoint where they could be close to -1 or
+1).

Am I missing something?
Dadi



On 7/16/07, Hans-Bernhard Br=F6ker <HBB...@t-...> wrote:
>
> Ashenafi Dadi wrote:
>
> [...]
> > on the x-y plane. If the 4th column has a value different from zero, it
> > will be, say, eithe -1 or +1. So what I want to do is to put a circle o=
r
> > whatever symbol for points for which the value of the 4th column is
> > different from zero on top of the plot (which is actually an splot)
> > which I obtain from the first three columns. I think there is a way to
> > do it in gnuplot. Can someone help me out with that?
>
> Something like this should do it:
>
>        set pm3d explicit
>        set view map
>        set zrange [0.5:1.5] ; unset ztics
>        splot 'data' u 1:2:3 w pm3d, '' u 1:2:4 with points
>