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From: Karl Ratzsch <mail.kfr@gmx.net>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Format change converter to 5.0?
Date: Fri, 31 Mar 2017 05:14:54 +0200
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Am 30.03.2017 um 20:44 schrieb Olaf Schultz:
> I have several files from older versions (4.4, 4.6...) which must now
> run also under 5.0... and that (censored) version complains not only
> ones about strange format and does nothing (better than just plot and
> strange results on the screen)...
> Actual:
> 
> set timefmt x "%Y-%m"
> 
> Is there a script/tool existing which is able to convert the format of
> gnuplot-files to the new version?

("censored"?)

Not to my knowledge. Who would want to spend more time on developing
such a tool than on converting a few old scripts?

But you can just go and strip the axis specifiers from all "set timefmt"
commands in your scripts, and see what happens. I'll doubt you see any
difference. According to the docs, even version 4.4 never expected any
axis specifier there (it was accepted, though, up to 4.6.6).

("set timefmt" is for _reading in_ time data, not for formatting the
output, that was always done by "set format". You don't have different
time formats in one data file, do you?)

  Karl