Groups > comp.graphics.apps.gnuplot > #3719

Re: Ephemerides data

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From	Karl Ratzsch <mail.kfr@gmx.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Ephemerides data
Date	Tue, 22 Aug 2017 03:59:24 +0200
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Am 22.08.2017 um 00:01 schrieb robertvanpass@gmail.com:
> On Monday, August 21, 2017 at 4:59:16 AM UTC+2, Karl Ratzsch wrote:

>>> $dat << EOD
>>> 8/20/2017;12:00:00 UTC+1.0;10h 35m 50.60s;+03° 47' 15.38";
>>> 8/21/2017;12:00:00 UTC+1.0;10h 33m 13.63s;+04° 02' 23.70";
>>> 8/22/2017;12:00:00 UTC+1.0;10h 30m 23.99s;+04° 20' 34.64";
>>> EOD
>>>
>> set dataf sep "; " # the backslash was nonsense
>> set table
>>
>> plot $dat us \
>> (timecolumn(1,"%d/%m/%Y")):\
>> (timecolumn(2,"%H:%M:%S")+strcol(3)[4:8]*3600):\
>> (timecolumn(4,"%Hh %Mm %Ss")/3600):\
>> (($7+$8/60+$9/3600)) w table
>>


> However I still have an issue:
> 
> When I add the code for the timezone specifier ( +strcol(3)[4:8]*3600) )
> I get the errormessage "Non-numeric string found where a numeric expression was expected"
> 

gnuplot automatically converts strings to numberic variables in
expressions (i.e. if you do math like *1.0) if possible.

Can you make an example like the one above that I can directly copy
into gnuplot to reproduce your problem?

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Ephemerides data robertvanpass@gmail.com - 2017-08-20 06:36 -0700
  Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-20 22:56 -0300
    Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-20 23:59 -0300
      Re: Ephemerides data robertvanpass@gmail.com - 2017-08-21 15:01 -0700
        Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-22 03:59 +0200
          Re: Ephemerides data robertvanpass@gmail.com - 2017-08-22 07:57 -0700
            Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-22 19:09 +0200
              Re: Ephemerides data robertvanpass@gmail.com - 2017-08-22 14:09 -0700
                Re: Ephemerides data Karl Ratzsch <mail.kfr@gmx.net> - 2017-08-23 01:45 +0200
                Re: Ephemerides data robertvanpass@gmail.com - 2017-08-23 13:09 -0700

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