Groups > comp.graphics.apps.gnuplot > #2000

Re: Using using

From	Christoph Bersch <usenet@bersch.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Using using
Date	2013-08-23 15:04 +0200
Organization	A noiseless patient Spider
Message-ID	<kv7mkj$s27$1@dont-email.me> (permalink)
References	<kv56va$q32$1@dont-email.me> <kv5boi$q05$1@news.rz.uni-karlsruhe.de> <kv77pa$loj$1@dont-email.me> <kv7aml$3nt$1@dont-email.me> <kv7ivs$8tk$1@dont-email.me>

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Am 23.08.2013 14:02, schrieb Dieter Britz:
> On Fri, 23 Aug 2013 11:40:37 +0200, Christoph Bersch wrote:
>
>> If you call gnuplot from a shell you should use column(2).
>
> ?? I have been using this, e.g. "using 1:3" to override the
> default 1:2, for years, and never a problem. Or do you mean
> I must use that if I want to manipulate the values in a column?

Ok, I wasn't very specific:

If you want to manipulate the values in a column, you can use either 
column(3) or its shorthand $3. However, if you invoke gnuplot from a 
shell using heredocs (<<eoi), like in your example, the $3 is 
interpreted as a shell variable. You could of course escape the dollar 
sign, but IMHO the best way is to use column(3) in that case which makes 
you independent of the environment.

Christoph

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Thread

Using using Dieter Britz <dieterhansbritz@gmail.com> - 2013-08-22 14:24 +0000
  Re: Using using Karl <mail.kfr@gmx.net> - 2013-08-22 17:46 +0200
    Re: Using using Dieter Britz <dieterhansbritz@gmail.com> - 2013-08-23 08:50 +0000
      Re: Using using Christoph Bersch <usenet@bersch.net> - 2013-08-23 11:40 +0200
        Re: Using using Dieter Britz <dieterhansbritz@gmail.com> - 2013-08-23 12:02 +0000
          Re: Using using Dieter Britz <dieterhansbritz@gmail.com> - 2013-08-23 12:44 +0000
          Re: Using using Christoph Bersch <usenet@bersch.net> - 2013-08-23 15:04 +0200

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