NetNews Usenet Archive 1992 #26/NN_1992_26.iso/spool/comp/graphics/gnuplot/334

Text File | 1992-11-09 | 1.7 KB | 38 lines

Newsgroups: comp.graphics.gnuplot
Path: sparky!uunet!destroyer!cs.ubc.ca!news.UVic.CA!sirius!Mark.McIntosh
From: [e-mail] (Mark  McIntosh)
Subject: Re: Date format conversion ?
In-Reply-To: [e-mail]'s message of Tue, 10 Nov 1992 02:04:11 GMT
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Nntp-Posting-Host: sombrio.uvic.ca
Organization: University of Victoria, Victoria, BC, Canada
References: <[e-mail]>
Date: 10 Nov 92 05:01:41 GMT

On Tue, 10 Nov 1992 02:04:11 GMT, [e-mail] (Michael Ratner) said:
>I have a sequence of the following pairs: [<date> <value>], where
><date> is expressed as the number of seconds elapsed since the
>beginning of UNIX era (Jan 1 00:00 1970).  Dates are not continuous,
>meaning that there's a gap between consecutive values of <date>.
>How do I get normal-looking dates on the plot as range markings for
>the "date" axis ?  Something like "Oct 1 10:15:34" instead of 74938183

I use the "xtics" command to set up explicit labels at the appropriate
integer time mark.  eg. for a plot where the x column indicates hours
from midnight Saturday:

set noautoscale x
set tics out
set xtics ("Sun" 12, "Mon" 36, "Tue" 60, "Wed" 84, "Thu" 108, "Fri" 132, "Sat" 156)
set xrange [0:167]
set xlabel "Day of the week (ticks are noon that day)"

Mark J. McIntosh <[e-mail]>
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University of Victoria, Faculty of Engineering - Dean's Office
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