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75 lines
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<title>EO: eoSymInit.h Source File</title>
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<a class="el" href="dir_000007.html">contrib</a> / <a class="el" href="dir_000008.html">mathsym</a> / <a class="el" href="dir_000018.html">eo_interface</a></div>
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<h1>eoSymInit.h</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">/* </span>
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00002 <span class="comment"> * Copyright (C) 2005 Maarten Keijzer</span>
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00003 <span class="comment"> *</span>
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00004 <span class="comment"> * This program is free software; you can redistribute it and/or modify</span>
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00005 <span class="comment"> * it under the terms of version 2 of the GNU General Public License as </span>
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00006 <span class="comment"> * published by the Free Software Foundation. </span>
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00007 <span class="comment"> *</span>
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00008 <span class="comment"> * This program is distributed in the hope that it will be useful,</span>
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00009 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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00010 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
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00011 <span class="comment"> * GNU General Public License for more details.</span>
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00012 <span class="comment"> *</span>
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00013 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
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00014 <span class="comment"> * along with this program; if not, write to the Free Software</span>
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00015 <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
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00016 <span class="comment"> */</span>
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00017
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00018 <span class="preprocessor">#ifndef EOSYMINIT_H</span>
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00019 <span class="preprocessor"></span><span class="preprocessor">#define EOSYMINIT_H</span>
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00020 <span class="preprocessor"></span>
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00021 <span class="preprocessor">#include <eoInit.h></span>
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00022 <span class="preprocessor">#include <TreeBuilder.h></span>
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00023
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00025 <span class="keyword">template</span> <<span class="keyword">class</span> EoType>
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<a name="l00026"></a><a class="code" href="classeo_sym_init.html">00026</a> <span class="keyword">class </span><a class="code" href="classeo_sym_init.html">eoSymInit</a> : <span class="keyword">public</span> <a class="code" href="classeo_init.html">eoInit</a><EoType> {
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00027
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00028 TreeBuilder& builder;
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00029
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00030 <span class="keywordtype">double</span> own_grow_prob;
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00031 <span class="keywordtype">unsigned</span> own_max_depth;
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00032
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00033
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00034 <span class="keywordtype">double</span>& grow_prob;
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00035 <span class="keywordtype">unsigned</span>& max_depth;
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00036
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00037 <span class="keyword">public</span>:
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00038
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<a name="l00040"></a><a class="code" href="classeo_sym_init.html#a0">00040</a> <a class="code" href="classeo_sym_init.html#a0">eoSymInit</a>(TreeBuilder& _builder)
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00041 : builder(_builder),
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00042 own_grow_prob(0.5),
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00043 own_max_depth(6),
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00044 grow_prob(own_grow_prob),
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00045 max_depth(own_max_depth)
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00046 {}
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00047
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<a name="l00049"></a><a class="code" href="classeo_sym_init.html#a1">00049</a> <a class="code" href="classeo_sym_init.html#a0">eoSymInit</a>(TreeBuilder& _builder, <span class="keywordtype">double</span>& _grow_prob, <span class="keywordtype">unsigned</span>& _max_depth)
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00050 : builder(_builder),
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00051 grow_prob(_grow_prob),
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00052 max_depth(_max_depth)
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00053 {}
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00054
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<a name="l00056"></a><a class="code" href="classeo_sym_init.html#a2">00056</a> <span class="keywordtype">void</span> <a class="code" href="classeo_sym_init.html#a2">operator()</a>(<a class="code" href="classeo_parse_tree.html">EoType</a>& tree) {
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00057 <span class="keywordtype">int</span> depth_to_use = rng.<a class="code" href="classeo_rng.html#a5">random</a>(max_depth-2) + 2; <span class="comment">// two levels minimum</span>
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00058 builder.build_tree(tree, depth_to_use, rng.<a class="code" href="classeo_rng.html#a6">flip</a>(grow_prob));
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00059 }
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00060
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00061 };
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00062
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00063 <span class="preprocessor">#endif</span>
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00064 <span class="preprocessor"></span>
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Oct 19 05:06:39 2006 for EO by
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.3.9.1 </small></address>
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