Re: How to use table header as title inside for loops?

[Ethan A M. <merritt@u.washington.edu>]

On Monday 09 March 2009, Juergen Wieferink wrote:
> 
> > May I request adding a simple example like this (using for loop and
> > "title column()") to
> >      http://gnuplot.sourceforge.net/demo/datastrings.html
> > ?
> 
> Mmmh.  As far as I can see this feature is undocumented up to now.
> >From the code,
> 
>   plot ... title column(<int expr>)
> 
> does more or less the same as
> 
>   plot ... title <int const>
> 
> The command
> 
>   plot ... title column
> 
> without following "(" tries to guess which column to fetch data
> from, which in this case might be exactly what you want.  I do not
> like that "column" has two different meanings.

Yes, the code is very hackish.  And column(n) seems wrong anyhow, 
since it is documented as returning a numerical value whereas in
this case we want a string.  It would be better as 
  plot ... title stringcolumn(n)


> As soon as it is documented or in the demos, this can never be
> changed.
> 
> > Also, it would be very helpful to havea tiny bit of information or a
> > simple sample available under
> >     "help for"
> >
> > I have read again "help plot/title" and then "datastrings", but didn't
> > find the any mention of "column". May I request adding some info on
> > that?
> 
> Juergen
> 

-- 
Ethan A Merritt