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Groups > comp.graphics.apps.gnuplot > #4047

Re: Rescale axis after smooth

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Am 26.09.2018 um 11:56 schrieb NeilB:

> 
> I get a nice smoothed CPU graph but the y axis maximum is set to the max of the csv data i.e. 854 so the curve is very low in the plot. I want to set the y axis maximum to be the max of the smoothed data and have tried using the MIN/MAX variables and replot i.e:
> 
> plot "temp.csv" u 1:2 smooth sbezier lw 2 title 'cpu'
> set yr [GPVAL_DATA_Y_MIN:GPVAL_DATA_Y_MAX]
> replot
> 
> ....but got the same result.
> 

There is no gnuplot status variable which returns the max value of the
smoothed data. GPVAL_DATA_ always contains the max values from the input
file.

I would do the following, first plotting to an inline named datablock,
and then plotting that again.

set table $sdat
plot datafile smooth sbezier
unset table

plot $sdat

The named datablock vanishes when you close gnuplot, so you don't have
to clean up temporary files afterwards.

You'll have to change the datafile separator in between, because gnuplot
tabular output is always space separated.



Best, Karl

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Thread

Rescale axis after smooth NeilB <neil@moogsoft.com> - 2018-09-26 02:56 -0700
  Re: Rescale axis after smooth Karl Ratzsch <mail.kfr@gmx.net> - 2018-09-26 12:33 +0200
    Re: Rescale axis after smooth NeilB <neil@moogsoft.com> - 2018-09-26 03:50 -0700

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