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Full Discussion: Problem creating graph with gnuplot with time on x-axis
Top Forums Shell Programming and Scripting Problem creating graph with gnuplot with time on x-axis Post 302789911 by hakro807 on Thursday 4th of April 2013 12:09:02 PM
Old 04-04-2013
I just realised the code I posted was incomplete. Since the x axis is time gnuplot has to be told so.

So the final code looks like this:

Code:
gnuplot
set terminal png
set output "graph_realtime.png"
set yrange [10:50]
set timefmt "%H:%M"
plot "./values_minute" using 1:2 title 'Temperature' with lines, \
"./values_minute" using 1:3 title 'Humidity' with lines

This works without giving an error message, but all the values is located at the extreme ends of the graph.

Added
Code:
set xdata time

which helped. But now I need to make the x axis easily readable, maybe tics every 15 minutes.

Added
Code:
set xtics "14:00", 900, "16:00"

which help but it's still showing the time as hours:minutes:seconds, how to only show it as hours:minutes? And does it exist an easy way to replace (in my example) 14:00 and 16:00 with proper values, i.e. if it was measured from 09:05 to 10:04 the first tic (excluding the edges of the graph) would be at 09:15, the last at at 10:00? I guess it's similar to
Code:
 set xtics "%H:M", 900, "%H:%M"

or do I have to create a script that read the first and last value from the table with values and insert the correct time?
Last edited by hakro807; 04-04-2013 at 01:50 PM..
 

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LEARN ABOUT OSX

locale::codes::langfam

Locale::Codes::LangFam(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangFam(3pm)

NAME

       Locale::Codes::LangFam - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a
       constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2012 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.16.2							    2012-10-11					       Locale::Codes::LangFam(3pm)
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