📄 mathematicalexpression.html
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</TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../weka/core/MathematicalExpression.html#evaluate(weka.core.MathematicalExpression.TreeNode, java.util.Map)">evaluate</A></B>(<A HREF="../../weka/core/MathematicalExpression.TreeNode.html" title="class in weka.core">MathematicalExpression.TreeNode</A> parseTree, java.util.Map symbols)</CODE><BR> evalutes and returns the result of a mathematical expression, based on the given expression tree and values of the symbols.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static double</CODE></FONT></TD><TD><CODE><B><A HREF="../../weka/core/MathematicalExpression.html#evaluate(java.lang.String, java.util.Map)">evaluate</A></B>(java.lang.String expr, java.util.Map symbols)</CODE><BR> generates a new parse tree from the given expression and evalutes and returns the result of a mathematical expression, based on the given values of the symbols.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../weka/core/MathematicalExpression.TreeNode.html" title="class in weka.core">MathematicalExpression.TreeNode</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../weka/core/MathematicalExpression.html#parse(java.lang.String)">parse</A></B>(java.lang.String exp)</CODE><BR> Construct the Expression tree for a given String</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TH></TR></TABLE><A NAME="MathematicalExpression()"><!-- --></A><H3>MathematicalExpression</H3><PRE>public <B>MathematicalExpression</B>()</PRE><DL></DL><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Method Detail</B></FONT></TH></TR></TABLE><A NAME="parse(java.lang.String)"><!-- --></A><H3>parse</H3><PRE>public static <A HREF="../../weka/core/MathematicalExpression.TreeNode.html" title="class in weka.core">MathematicalExpression.TreeNode</A> <B>parse</B>(java.lang.String exp) throws java.lang.Exception</PRE><DL><DD>Construct the Expression tree for a given String<P><DD><DL><DT><B>Parameters:</B><DD><CODE>exp</CODE> - the expression used to build the tree<DT><B>Returns:</B><DD>the generated node<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if EOF is not reached</DL></DD></DL><HR><A NAME="evaluate(java.lang.String, java.util.Map)"><!-- --></A><H3>evaluate</H3><PRE>public static double <B>evaluate</B>(java.lang.String expr, java.util.Map symbols) throws java.lang.Exception</PRE><DL><DD>generates a new parse tree from the given expression and evalutes and returns the result of a mathematical expression, based on the given values of the symbols.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>expr</CODE> - the expression to evaluate<DD><CODE>symbols</CODE> - the symbol/value mapping<DT><B>Returns:</B><DD>the evaluated result<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL></DD></DL><HR><A NAME="evaluate(weka.core.MathematicalExpression.TreeNode, java.util.Map)"><!-- --></A><H3>evaluate</H3><PRE>public static double <B>evaluate</B>(<A HREF="../../weka/core/MathematicalExpression.TreeNode.html" title="class in weka.core">MathematicalExpression.TreeNode</A> parseTree, java.util.Map symbols) throws java.lang.Exception</PRE><DL><DD>evalutes and returns the result of a mathematical expression, based on the given expression tree and values of the symbols.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>parseTree</CODE> - fully generated expression tree<DD><CODE>symbols</CODE> - the symbol/value mapping<DT><B>Returns:</B><DD>the evaluated result<DT><B>Throws:</B><DD><CODE>java.lang.Exception</CODE> - if something goes wrong</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="http://www.cs.waikato.ac.nz/ml/weka/" target="_blank"><FONT CLASS="NavBarFont1"><B>Weka's home</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../weka/core/Matchable.html" title="interface in weka.core"><B>PREV CLASS</B></A> <A HREF="../../weka/core/MathematicalExpression.Tokenizer.html" title="class in weka.core"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html?weka/core/MathematicalExpression.html" target="_top"><B>FRAMES</B></A> <A HREF="MathematicalExpression.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: <A HREF="#nested_class_summary">NESTED</A> | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_bottom"></A><!-- ======== END OF BOTTOM NAVBAR ======= --><HR></BODY></HTML>⌨️ 快捷键说明
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