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Full Discussion: Creating graphs
Top Forums Shell Programming and Scripting Creating graphs Post 302427542 by Lakris on Monday 7th of June 2010 02:50:13 AM
Old 06-07-2010
Quote:
Originally Posted by frustrated1
Thanks

any chance you can post example of data file you had and commands you used with gnuplot to plot the data and get output?
Hi!
Sure. Here's a very trivial example; I weighed myself a few times, usually morning and afternoon, recorded the weights with date in a file like this, file vikt.dat:
Code:
2009-Dec-14_17:21 87.70  88.50
2009-Dec-17_08:27 87.65  88.75
2009-Dec-17_14:17 87.80  88.55
2009-Dec-18_10:23 87.40  88.30
2009-Dec-18_14:21 88.45  87.65
2009-Dec-18_19:13 88.25  87.75
2009-Dec-19_08:18 87.50  87.60
2009-Dec-19_13:54 87.75  87.25
2009-Dec-20_14:36 87.90  87.30
2009-Dec-21_15:32 88.90  87.45
2009-Dec-21_16:55 88.00  89.20
2009-Jan-07_14:48 88.05  87.95
2009-Jan-09_11:41 88.50  87.65

Then I used this script for gnuplot to plot the data into a line graph, vikt.plot:
Code:
set xdata time  # The x axis data is time
set timefmt "%Y-%b-%d_%H:%M"
set format x "%d %b"
with linespoint
plot [] [85:91]  'vikt.dat' using 1:2 with linespoint

and call the script from the command line or a script with:
Code:
gnuplot -p vikt.plot

And there are as You can see on their web site, lot's of formats for graphs, ability to export to different graphic file formats, etc, this is just a very simple example.

Best regards,
Lakris

PS I have used it professionally as well Smilie
 

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LEARN ABOUT CENTOS

graphml2gv

GRAPHML2GV(1)						      General Commands Manual						     GRAPHML2GV(1)

NAME

       graphml2gv - GRAPHML-DOT converter

SYNOPSIS

       graphml2gv [ -?v ] [ -ggname ] [ -ooutfile ] [ files ]

DESCRIPTION

       graphml2gv converts a graph specified in the GRAPHML format to a graph in the GV (formerly DOT) format.

OPTIONS

       The following options are supported:

       -v     Turns on verbose mode

       -?     Prints usage information and exits.

       -ggname
	      The string gname is used as the name of the generated graph.  If multiple graphs are generated, subsequent graphs use the name gname
	      appended with an integer.

       -ooutfile
	      Prints output to the file outfile. If not given, graphml2gv uses stdout.

       OPERANDS
	      The following operand is supported:

       files   Names of files containing 1 or more graphs in GRAPHML.  If no files operand is specified, the standard input will be used.

RETURN CODES

       Return 0 if there were no problems during conversion; and non-zero if any error occurred.

LIMITATIONS

       As both the graph and graphics models of GV and GML differ significantly, the conversion can only be at best approximate.   In  particular,
       GV currently has no notion of hyperedges or edges containing graphs.

       At  present,  graphml2gv  only  supports the basic graph topology. Specifically, the <KEY> and <DATA> elements are not handled, though they
       could be.

AUTHORS

       Emden R. Gansner <erg@research.att.com>

SEE ALSO

       dot(1), libcgraph(3)

								   14 July 2011 						     GRAPHML2GV(1)
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