<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<!--Converted with LaTeX2HTML 2008 (1.71)
original version by: Nikos Drakos, CBLU, University of Leeds
* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
* with significant contributions from:
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
<HTML>
<HEAD>
<TITLE>Xdata</TITLE>
<META NAME="description" CONTENT="Xdata">
<META NAME="keywords" CONTENT="gnuplot">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
<META NAME="Generator" CONTENT="LaTeX2HTML v2008">
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
<LINK REL="STYLESHEET" HREF="gnuplot.css">
<LINK REL="next" HREF="node296.html">
<LINK REL="previous" HREF="node294.html">
<LINK REL="up" HREF="node175.html">
<LINK REL="next" HREF="node296.html">
</HEAD>
<BODY >
<!--Navigation Panel-->
<A NAME="tex2html5436"
HREF="node296.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html5430"
HREF="node175.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html5424"
HREF="node294.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html5432"
HREF="node1.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<A NAME="tex2html5434"
HREF="node467.html">
<IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html5437"
HREF="node296.html">Xdtics</A>
<B> Up:</B> <A NAME="tex2html5431"
HREF="node175.html">Set-show</A>
<B> Previous:</B> <A NAME="tex2html5425"
HREF="node294.html">X2zeroaxis</A>
<B> <A NAME="tex2html5433"
HREF="node1.html">Contents</A></B>
<B> <A NAME="tex2html5435"
HREF="node467.html">Index</A></B>
<BR>
<BR>
<!--End of Navigation Panel-->
<H2><A NAME="SECTION0402486000000000000000"></A>
<A NAME="commands_set_xdata"></A><A NAME="commands_show_xdata"></A><A NAME="set_xdata"></A><A NAME="show_xdata"></A><A NAME="xdata"></A><A NAME="6881"></A>
<BR>
Xdata
</H2>
This command sets the datatype on the x axis to time/date. A similar command
does the same thing for each of the other axes.
<P>
Syntax:
<BR>
<PRE>
set xdata {time}
show xdata
</PRE>
<BR>
<P>
The same syntax applies to <B>ydata</B>, <B>zdata</B>, <B>x2data</B>, <B>y2data</B> and <B>cbdata</B>.
<P>
The <B>time</B> option signals that the datatype is indeed time/date. If the
option is not specified, the datatype reverts to normal.
<P>
See <B>set timefmt (p. <A HREF="node278.html#set_timefmt"><IMG ALIGN="BOTTOM" BORDER="1" ALT="[*]" SRC="crossref.png"></A>)<A NAME="6891"></A></B> to tell gnuplot how to read date or time data. The
time/date is converted to seconds from start of the century. There is
currently only one timefmt, which implies that all the time/date columns must
conform to this format. Specification of ranges should be supplied as quoted
strings according to this format to avoid interpretation of the time/date as
an expression.
<P>
The function 'strftime' (type <TT>"</TT>man strftime<TT>"</TT> on unix to look it up) is used
to print tic-mark labels. <B>gnuplot</B> tries to figure out a reasonable format
for this unless the <B>set format x <TT>"</TT>string<TT>"</TT></B> has supplied something that does
not look like a decimal format (more than one '%' or neither %f nor %g).
<P>
See also <B>Time/date (p. <A HREF="node54.html#Time_date"><IMG ALIGN="BOTTOM" BORDER="1" ALT="[*]" SRC="crossref.png"></A>)<A NAME="6898"></A></B> for more information.
<HR>
<!--Navigation Panel-->
<A NAME="tex2html5436"
HREF="node296.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html5430"
HREF="node175.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html5424"
HREF="node294.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html5432"
HREF="node1.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<A NAME="tex2html5434"
HREF="node467.html">
<IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html5437"
HREF="node296.html">Xdtics</A>
<B> Up:</B> <A NAME="tex2html5431"
HREF="node175.html">Set-show</A>
<B> Previous:</B> <A NAME="tex2html5425"
HREF="node294.html">X2zeroaxis</A>
<B> <A NAME="tex2html5433"
HREF="node1.html">Contents</A></B>
<B> <A NAME="tex2html5435"
HREF="node467.html">Index</A></B>
<!--End of Navigation Panel-->
<ADDRESS>
2010-08-17
</ADDRESS>
</BODY>
</HTML>
