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<html>
<head>
<!-- This file has been generated by unroff 1.0, 06/13/02 07:32:04. -->
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<STYLE TYPE="text/css">
<!--
A:link{text-decoration:none}
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</STYLE>
<title>ploticus: vbars prefab</title>
<body bgcolor=D0D0EE vlink=0000FF>
<br>
<br>
<center>
<table cellpadding=2 bgcolor=FFFFFF width=550 ><tr>
<td>
<table cellpadding=2 width=550><tr>
<td><br><h2>vbars prefab</h2></td>
<td align=right>
<small>
<a href="../doc/Welcome.html"><img src="../doc/ploticus.gif" border=0></a><br>
<a href="../doc/Welcome.html">Welcome</a>
<a href="../gallery/index.html">Gallery</a>
<a href="../doc/Contents.html">Handbook</a>
<td></tr></table>
</td></tr>
<td>
<br>
<br>
<title>Manual page for vbars_prefab(PL)</title>
</head>
<body>
<h2>EXAMPLE 1</h2>
<p>
<center><table cellpadding=2><tr>
<td><img src="../gallery/prefab_img/vbars1.gif"></td></tr>
</table></center>
<p>
<pre>
ploticus -prefab vbars data=data4 delim=tab x=1 y=2 vals=yes\
yrange=0 yinc=20 ygrid=yes barwidth=0.3
data4 file:
Group A 78 7
Group B 84 12
Group C 56 6
</pre>
<h2>EXAMPLE 2</h2>
<center><table cellpadding=2><tr>
<td><img src="../gallery/prefab_img/vbars2.gif"></td></tr>
</table></center>
<p>
<pre>
ploticus -prefab vbars data=data5 delim=tab x=1 y=2 err=3 \
y2=4 err2=5 errunder=yes ygrid=yes barwidth=0.1 \
name=Treatment name2=Control stubvert=yes
data5 file:
Test 3 76 19 84 14
Test 4 83 12 64 9
Test 5 95 11 92 13
...etc..
</pre>
<h2>EXAMPLE 3</h2>
<center><table cellpadding=2><tr>
<td><img src="../gallery/prefab_img/vbars3.gif"></td></tr>
</table></center>
<p>
<pre>
ploticus -prefab vbars data=data5 delim=tab x=1 y=2 err=3 y2=4 \
err2=5 erronly=yes name=Treatment name2=Control stubvert=yes \
errcolor=red errcolor2=blue sep=0.08 xgrid=yes ylog=log
</pre>
<h2>EXAMPLE 4</h2>
<center><table cellpadding=2><tr>
<td><img src="../gallery/prefab_img/vbars4.gif"></td></tr>
</table></center>
<pre>
ploticus -prefab vbars data=data18 x=1 y=2 crossover=0 \
color=blue vals=yes
The data18 file:
1992 -47
1993 -63
1994 -24
1995 12
..etc.
</pre>
<p>
<a href="prefabs.html#examples">
How to run these examples
</a>
<br><br><br>
<h2>DESCRIPTION</h2>
<tt>vbars</tt> is a
<a href="prefabs.html">
prefab
</a>
for producing bar graphs with vertical solid bars for one or two groups.<tt> </tt>
Two groups of values may be displayed if <b>y2</b> (etc) are used, as in the second example.<tt> </tt>
Error bars may be added above or below the bar graph, or error bars alone may be rendered.<tt> </tt>
By default the X axis is categories, but it may be continuous numeric if <b>xnumeric</b> is used
(for chronological data use the
<a href="prefab_chron.html">
chron prefab
</a>
).<tt> </tt>
This prefab is based on
<a href="bars.html">
proc bars
</a>
.<tt> </tt>
<br><br><br>
<h2>PARAMETERS</h2>
<dl>
<dt><dd><p>
<a href="prefab_stdparms.html">
Standard prefab parameters
</a>
are all supported. <b>data</b>, <b>x</b> and <b>y</b> are required.<tt> </tt>
<b>y</b> values should be numeric and will determine the height of bars.<tt> </tt>
<b>x</b> values determine bar locations.<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>color</b> is the
<a href="color.html">
color
</a>
of the first set of filled bars (default = orange)
<br>
<br>
<dt><dd><p>
<b>barwidth</b> is the width of the filled bars. This is a value in inches,
or may be given as <tt>line</tt> for very thin bars.<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>errcolor</b> is the error bar
<a href="color.html">
color
</a>
for the error bars associated with the first set of bars
(default = black).<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>errwidth</b> is the width of error bar tails in inches (default = 0.08)
<br>
<br>
<dt><dd><p>
<b>errthick</b> is the thickness of the error bar lines (default = 0.5)
<br>
<br>
<dt><dd><p>
<b>errunder</b> may be set to <tt>yes</tt> if error bars should be drawn "under"
the filled bars (only the upward error bar is thus visible).<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>erronly</b> may be set to <tt>yes</tt> if error bars only are desired,
without any filled bars.<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>xnumeric</b> may be specified as <tt>yes</tt> to signify that X values
are numeric and not categories.<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>vals</b> may be specified as <tt>yes</tt> to indicate that the
numeric values should be displayed near the top of each bar.<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>crossover</b> may be specified as the value in Y where bars begin
to point downward instead of upward. For instance, <tt>crossover=0</tt>
is often useful when dealing with financial income, to show loss
using downward bars.<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>curve</b> may be given as <tt>yes</tt>, or as a
<a href="linedetails.html">
linedetails
</a>
attribute, which causes a moving average curve to be fit to bars, and drawn behind
the bars. Not applicable to a second set of bars.<tt> </tt>
The <b>order</b> parameter may be set to the number of preceding data points
to be considered when computing averages (default = 5).<tt> </tt>
</dl>
<p>
The following parameters are used when displaying two groups of values.<tt> </tt>
The second example above illustrates.<tt> </tt>
<dl>
<dt><dd><p>
<b>y2</b>, <b>color2</b>, <b>err2</b>, and <b>errcolor2</b> control the size and color
of the second set of bars, and the magnitude and color of error bars
associated with the second set. Default color2 is green.<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>sep</b> controls bar separation (default=0.15)
<br>
<br>
<dt><dd><p>
<b>name</b> and <b>name2</b> should be given as legend labels for the two groups.<tt> </tt>
If your data contains a field name header
and <b>header=yes</b> is specified, <b>name</b> defaults to the
<b>y</b> field name, and <b>name2</b> defaults to the <b>y2</b> field name (new in 2.04).<tt> </tt>
<br>
<br>
<dt><dd><p>
<b>legend</b> controls the
<a href="attributetypes.html#xy">
location
</a>
of the legend. Example: <tt>"legend=1 0.5"</tt> Default is <tt>min+0.4 max</tt>.<tt> </tt>
<br>
<br>
</td></tr>
<td align=right>
<a href="../doc/Welcome.html">
<img src="../doc/ploticus.gif" border=0></a><br><small>data display engine <br>
<a href="../doc/Copyright.html">Copyright Steve Grubb</a>
<br>
<br>
<center>
<img src="../gallery/all.gif">
</center>
</td></tr>
</table>
</dl>
<p><hr>
Markup created by <em>unroff</em> 1.0, <tt> </tt> <tt> </tt>June 13, 2002.
</body>
</html>
|
