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

[Thomas S. <t.s...@fz...>]

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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