Groups > comp.graphics.apps.gnuplot > #3081

Re: plot "mystuff.txt" using 1:(log($2)) crashes.

From	Jörg Buchholz <bookwood4new@freenet.de>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: plot "mystuff.txt" using 1:(log($2)) crashes.
Date	2015-09-15 11:45 +0200
Organization	Universitaet Hannover
Message-ID	<mt8pb9$55v$1@newsserver.rrzn.uni-hannover.de> (permalink)
References	<alpine.WNT.2.20.1509151112170.1952@dhcp3-6>

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On 15.09.2015 11:15, Jean-Pierre Coulon wrote:
> Gnuplot says: all points y value undefined! My xrange is strictly positive.
>
> It works using exp, sqrt or sin instead of log. Does anybody know why it
> fails with log or log10?

Have you tested it with simple data?

gnuplot> plot '-' u 1:(log($2)) w lp
input data ('e' ends) > 1 2
input data ('e' ends) > 2 3
input data ('e' ends) > 3 4
input data ('e' ends) > 4 5
input data ('e' ends) > e

works normal with 5.0.1

Jörg

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plot "mystuff.txt" using 1:(log($2)) crashes. Jean-Pierre Coulon <coulon@cacas.pam.obs-nice.fr> - 2015-09-15 11:15 +0200
  Re: plot "mystuff.txt" using 1:(log($2)) crashes. Jörg Buchholz <bookwood4new@freenet.de> - 2015-09-15 11:45 +0200
    Re: plot "mystuff.txt" using 1:(log($2)) crashes. Jean-Pierre Coulon <coulon@cacas.pam.obs-nice.fr> - 2015-09-15 13:50 +0200

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