range.html

< 数据挖掘--实用机器学习技术及java实现> 一书结合数据挖掘和机器学习的知识,作者陈述了自动挖掘模式的基础理论,并且以java语言实现了具有代表性的各类数据挖掘方法.例如:class

<PRE>
public <B>Range</B>(java.lang.String&nbsp;rangeList)</PRE>
<DL>
<DD>Constructor to set initial range.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rangeList</CODE> - the initial range<DT><B>Throws:</B><DD><CODE>java.lang.IllegalArgumentException</CODE> - if the range list is invalid</DL>
</DD>
</DL>

<!-- ============ METHOD DETAIL ========== -->

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<B>Method Detail</B></FONT></TD>
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<A NAME="setUpper(int)"><!-- --></A><H3>
setUpper</H3>
<PRE>
public void <B>setUpper</B>(int&nbsp;newUpper)</PRE>
<DL>
<DD>Sets the value of "last".<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newUpper</CODE> - the value of "last"</DL>
</DD>
</DL>
<HR>

<A NAME="getInvert()"><!-- --></A><H3>
getInvert</H3>
<PRE>
public boolean <B>getInvert</B>()</PRE>
<DL>
<DD>Gets whether the range sense is inverted, i.e. all <i>except</i>
 the values included by the range string are selected.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>whether the matching sense is inverted</DL>
</DD>
</DL>
<HR>

<A NAME="setInvert(boolean)"><!-- --></A><H3>
setInvert</H3>
<PRE>
public void <B>setInvert</B>(boolean&nbsp;newSetting)</PRE>
<DL>
<DD>Sets whether the range sense is inverted, i.e. all <i>except</i>
 the values included by the range string are selected.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>newSetting</CODE> - true if the matching sense is inverted</DL>
</DD>
</DL>
<HR>

<A NAME="getRanges()"><!-- --></A><H3>
getRanges</H3>
<PRE>
public java.lang.String <B>getRanges</B>()</PRE>
<DL>
<DD>Gets the string representing the selected range of values<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the range selection string</DL>
</DD>
</DL>
<HR>

<A NAME="setRanges(java.lang.String)"><!-- --></A><H3>
setRanges</H3>
<PRE>
public void <B>setRanges</B>(java.lang.String&nbsp;rangeList)</PRE>
<DL>
<DD>Sets the ranges from a string representation.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>rangeList</CODE> - the comma separated list of ranges. The empty
 string sets the range to empty.<DT><B>Throws:</B><DD><CODE>java.lang.IllegalArgumentException</CODE> - if the rangeList was not well formed</DL>
</DD>
</DL>
<HR>

<A NAME="isInRange(int)"><!-- --></A><H3>
isInRange</H3>
<PRE>
public boolean <B>isInRange</B>(int&nbsp;index)</PRE>
<DL>
<DD>Gets whether the supplied cardinal number is included in the current
 range.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the number of interest<DT><B>Returns:</B><DD>true if index is in the current range<DT><B>Throws:</B><DD><CODE>java.lang.RuntimeException</CODE> - if the upper limit of the range hasn't been defined</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Constructs a representation of the current range. Being a string
 representation, the numbers are based from 1.<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the string representation of the current range</DL>
</DD>
</DL>
<HR>

<A NAME="getSelection()"><!-- --></A><H3>
getSelection</H3>
<PRE>
public int[] <B>getSelection</B>()</PRE>
<DL>
<DD>Gets an array containing all the selected values, in the order
 that they were selected (or ascending order if range inversion is on)<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the array of selected values<DT><B>Throws:</B><DD><CODE>java.lang.RuntimeException</CODE> - if the upper limit of the range hasn't been defined</DL>
</DD>
</DL>
<HR>

<A NAME="indicesToRangeList(int[])"><!-- --></A><H3>
indicesToRangeList</H3>
<PRE>
public static java.lang.String <B>indicesToRangeList</B>(int[]&nbsp;indices)</PRE>
<DL>
<DD>Creates a string representation of the indices in the supplied array.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>indices</CODE> - an array containing indices to select.
 Since the array will typically come from a program, indices are assumed
 from 0, and thus will have 1 added in the String representation.</DL>
</DD>
</DL>
<HR>

<A NAME="setFlags()"><!-- --></A><H3>
setFlags</H3>
<PRE>
protected void <B>setFlags</B>()</PRE>
<DL>
<DD>Sets the flags array.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="rangeSingle(java.lang.String)"><!-- --></A><H3>
rangeSingle</H3>
<PRE>
protected int <B>rangeSingle</B>(java.lang.String&nbsp;single)</PRE>
<DL>
<DD>Translates a single string selection into it's internal 0-based equivalent<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>single</CODE> - the string representing the selection (eg: 1 first last)<DT><B>Returns:</B><DD>the number corresponding to the selected value</DL>
</DD>
</DL>
<HR>

<A NAME="rangeLower(java.lang.String)"><!-- --></A><H3>
rangeLower</H3>
<PRE>
protected int <B>rangeLower</B>(java.lang.String&nbsp;range)</PRE>
<DL>
<DD>Translates a range into it's lower index.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>range</CODE> - the string representation of the range<DT><B>Returns:</B><DD>the lower index of the range</DL>
</DD>
</DL>
<HR>

<A NAME="rangeUpper(java.lang.String)"><!-- --></A><H3>
rangeUpper</H3>
<PRE>
protected int <B>rangeUpper</B>(java.lang.String&nbsp;range)</PRE>
<DL>
<DD>Translates a range into it's upper index. Must only be called once
 setUpper has been called.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>range</CODE> - the string representation of the range<DT><B>Returns:</B><DD>the upper index of the range</DL>
</DD>
</DL>
<HR>

<A NAME="isValidRange(java.lang.String)"><!-- --></A><H3>
isValidRange</H3>
<PRE>
protected boolean <B>isValidRange</B>(java.lang.String&nbsp;range)</PRE>
<DL>
<DD>Determines if a string represents a valid index or simple range.
 Examples: <code>first  last   2   first-last  first-4  4-last</code>
 Doesn't check that a < b for a-b<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>range</CODE> - &nbsp;<DT><B>Returns:</B><DD>true if the range is valid</DL>
</DD>
</DL>
<HR>

<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(java.lang.String[]&nbsp;argv)</PRE>
<DL>
<DD>Main method for testing this class.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>argv</CODE> - one parameter: a test range specification</DL>
</DD>
</DL>
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