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From: Frank Ursel <sexyspamcatcher@trash-mail.com>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: missing date in input file
Date: Wed, 21 Mar 2012 14:04:38 +0000 (UTC)
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Hans-Bernhard Bröker schrieb:
> On 21.03.2012 09:53, Frank Ursel wrote:
>> Is there a way to tell gnuplot to interpolate/interprete the missing
>> values for by gnuplot inserted dates as e.g. zero?
> 
> No, because there are no missing values in that dataset.  gnuplot cannot
> know the difference between a data point just not existing and one being
> omitted on purpose.

But it could know it - it knows how to draw the x-axis with dates, 
without gaps, even if some dates are missing in the data set.

If you want such a difference to be made, you have
> to tell gnuplot about it explicitly --- by putting missing points into
> the file, marked appropriately.  Or put blank lines in there.  Those
> will also break 'with lines'.

Ok, I will try to manage it this way.

Thanks,
Frank