Re: [Gnuplot-info] ignore invalid data from an input dataset

[Jon <dev...@gm...>]

Clever trick! Many thanks!

Jon


On Tue, Nov 30, 2010 at 2:30 AM, Thomas Sefzick <t.s...@fz...>wrote:

>
> removing the unwanted points or replacing them by the average of the
> y-values of the adjacent points is the same, at least for discrete gaps.
>
> you could store the last valid point and plot it instead of the unwanted
> one.
>
> xlast=ylast=NaN
> p 'aa' u (($2>5)?(xlast=$1,xlast):xlast):(($2>5)?(ylast=$2,ylast):ylast) w
> l
>
>
> bsmile wrote:
> >
> > Dear members,
> >
> > I am trying to skip data which is beyond the valid range. The usual way
> > like
> >
> >
> > p 'aa' u 1:(($2>5)?$2:1/0) w l
> >
> > leaves in the figure broken lines, which does not look very good.
> >
> > I am wondering whether I can do the following two ways
> >
> > (1) remove these points on the x axis?
> > (2) reset the value of these points as average of the nearby two
> > points(one
> > before it and one after it)?
> >
> > Thanks,
> >
> > Sincerely,
> > Jon
> >
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