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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><title>SetYScaleType</title><link rel="stylesheet" type="text/css" href="phplotdoc.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="PHPlot Reference Manual" /><link rel="up" href="reference.html" title="PHPlot Function Reference" /><link rel="prev" href="SetYLabelType.html" title="SetYLabelType" /><link rel="next" href="SetYTickAnchor.html" title="SetYTickAnchor" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">SetYScaleType</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="SetYLabelType.html">Prev</a> </td><th width="60%" align="center">PHPlot Function Reference</th><td width="20%" align="right"> <a accesskey="n" href="SetYTickAnchor.html">Next</a></td></tr></table><hr /></div><div class="refentry"><a id="SetYScaleType"></a><div class="titlepage"></div><div class="refnamediv"><h2><span class="refentrytitle">SetYScaleType</span></h2><p>SetYScaleType &#8212; Select linear or logarithmic scale</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">$plot-&gt;SetYScaleType(<em class="parameter"><code>$st</code></em>)</pre></div><div class="refsect1"><a id="idp1379230892"></a><h2>Description</h2><p>
<code class="function">SetYScaleType</code> sets the scale type along the Y axis 
to be either linear (the default) or logarithmic.
    </p></div><div class="refsect1"><a id="idp1379231940"></a><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>$st</code></em></span></dt><dd><p>
A string specifying the scale type: 'linear' or 'log'.
          </p></dd></dl></div></div><div class="refsect1"><a id="idp1379233436"></a><h2>Notes</h2><p>
No Y value may be less than or equal to 0 with logarithmic Y scale.
    </p><p>
Support for logarithmic scales in PHPlot is limited. One problem is that
tick interval is fixed for the entire range of data, which is inappropriate
for logarithmic scales where the data spans more than one magnitude.
    </p><p>
The default X and Y scale types are linear.
    </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="SetYLabelType.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="reference.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="SetYTickAnchor.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">SetYLabelType </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> SetYTickAnchor</td></tr></table></div></body></html>