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From: =?UTF-8?B?SGFucy1CZXJuaGFyZCBCcsO2a2Vy?= <HBBroeker@t-online.de>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: missing date in input file
Date: Wed, 21 Mar 2012 12:13:29 +0100
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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.  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'.

> I know about missing data I could put a ? in the dataset but it's hard
> for me to figure out the missing dates and include the right ones,

If it's hard even for you, how do you expect gnuplot to manage it?