locale.h and gnuplot

[Andreas Beyer]

I think I had the same problem with StatistX. If I remember correctly, 
my solution was to set the locale to the default C-locale before passing 
anything to gnuplot. Afterwards I set it back to the previous setting.

Andreas

Bernhard Reiter schrieb:
> On Thu, Feb 10, 2005 at 09:37:47AM -0300, Jakson Aquino wrote:
> 
>>When trying to see a boxplot I got the following
>>gnuplot error:
>>
>>Spalte fuer Variable 1: TVHOURS
>>
>>Erstelle gnuplot-Graphik ...
>>
>>
>>0 vermutliche Ausreisser gefunden
>>
>>   --- Bitte mit ENTER fortfahren ... ---
>>gnuplot> plot [0,8:5,2][9:13]
>>'/home/jakson/stat_gpl.dat' with lines
>>                ^
>>         line 0: ':' or keyword 'to' expected
>>
>>
>>The problem is that, in many languages (among them:
>>German, French, Spanish, Italian, and Portuguese), the
>>decimal separator is not a "."; it's a ",". However,
>>the culprit is <locale.h>. With locale.h, the printf
>>function becomes very smart. It's good to see the
>>results of calculations printed with the correct
>>decimal separator, but, while writing a file to
>>gnuplot, locale.h is a problem.
>>
>>Another --far less important-- side effect of locale.h
>>is that if we save columns in an ascii file running
>>Statist in a language other than English, it will not
>>be possible to open the file running Statist in
>>English. We would have, for example, 1,30000e+01
>>instead of 1.30000e+01. Since this side effect isn't
>>properly a bug of Statist, I think that it will be
>>enough to document it. And the solution is very
>>simple: use some tool to replace all "," with ".".
>>
>>Is there any easy way of fixing the problem with
>>gnuplot?
> 
> 
> We probably need to ignore 
> the locale settings for files and gnuplot.
> This is possible, I only have to look up how.
> 
> 
> 
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-- 
--------------------------------------
   Dr. Andreas Beyer - beyer at imb-jena.de
   http://www.imb-jena.de/~beyer
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