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

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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

#3080 — plot "mystuff.txt" using 1:(log($2)) crashes.

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?

Bye,
-- 
Jean-Pierre Coulon

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#3081

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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#3082

Sorry, I had left my y axis in log, from the previous plot. But we could 
expect a more specific error message!

-- 
Jean-Pierre Coulon

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