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

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

Path	csiph.com!news.swapon.de!newsfeed.fsmpi.rwth-aachen.de!newsfeed.straub-nv.de!news-2.dfn.de!news.dfn.de!newsserver.rrzn.uni-hannover.de!.POSTED!not-for-mail
From	Jörg Buchholz <bookwood4new@freenet.de>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: plot "mystuff.txt" using 1:(log($2)) crashes.
Date	Tue, 15 Sep 2015 11:45:15 +0200
Organization	Universitaet Hannover
Lines	19
Message-ID	<mt8pb9$55v$1@newsserver.rrzn.uni-hannover.de> (permalink)
References	<alpine.WNT.2.20.1509151112170.1952@dhcp3-6>
NNTP-Posting-Host	131.173.125.181
Mime-Version	1.0
Content-Type	text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding	8bit
X-Trace	newsserver.rrzn.uni-hannover.de 1442310313 5311 131.173.125.181 (15 Sep 2015 09:45:13 GMT)
X-Complaints-To	usenet@newsserver.rrzn.uni-hannover.de
NNTP-Posting-Date	Tue, 15 Sep 2015 09:45:13 +0000 (UTC)
User-Agent	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0 SeaMonkey/2.35
In-Reply-To	<alpine.WNT.2.20.1509151112170.1952@dhcp3-6>
Xref	csiph.com comp.graphics.apps.gnuplot:3081

Show key headers only | View raw

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

Back to comp.graphics.apps.gnuplot | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

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

csiph-web