/*----------------------------------------------------------------------
??File????:?data.cpp
??Contents:?data?set?management
??Author??:?Bart?Goethals
??Update??:?04/04/2003
??----------------------------------------------------------------------*/

#include?
using?namespace?std;
#include?“data.h“

Transaction::Transaction（const?Transaction?&tr）
{
??length?=?tr.length;
??t?=?new?int[tr.length];
??for（int?i=0;?i}

Data::Data（char?*filename?int?t）
{
??fn?=?filename;
??type?=?t;
??current=0;

??if（type>1）?in?=?fopen（fn“rt“）;
??else?in?=?fopen（fn“rb“）;
}

Data::~Data（）
{
??if（in）?fclose（in）;
}

Transaction?*Data::getNext（）
{
??Transaction?*t=0;

??switch（type）{
??case?1:?t=?getNextBin（）;?break;
??case?2:?t=?getNextAs（）;?break;
??case?3:?t=?getNextAsFlat（）;?break;
??case?4:?t=?getNextAsQuest（）;?break;
??}

??if（t）?current++;
??else?{
????rewind（in）;
????current=0;
??}

??return?t;
}

Transaction?*Data::getNextAs（）?
{
??Transaction?*t;
??int?tid?item?i?dummy;
??vector?list;
??static?int?cur=0prev=-1;
??static?bool?begin=true;
??
??if（feof（in））?{
????begin=true;
????prev=-1;
????return?0;
??}

??if（!begin）?list.push_back（cur）;
??else?begin=false;

??while（true）?{
????fscanf（in?“%d?%d?%d“&dummy?&tid?&item）;
????if（feof（in））?{
??????int?size=list.size（）;
??????t?=?new?Transaction（size）;
??????for（i=0;?it[i]?=?list[i];
??????list.clear（）;

??????return?t;
????}
????else?if（prev<0）	prev=tid;
????else?if（tid?!=?prev）{
??????prev?=?tid;
??????cur?=?item;
??????int?size=list.size（）;
??????t?=?new?Transaction（size）;
??????for（i=0;?it[i]?=?list[i];
??????list.clear（）;
			
??????return?t;
????}

????list.push_back（item）;
??}
}

Transaction?*Data::getNextAsFlat（）
{
??vector?list;
??char?c;

??//?read?list?of?items
??do?{
????int?item=0?pos=0;
????c?=?getc（in）;
????while（（c?>=?‘0‘）?&&?（c?<=?‘9‘））?{
??????item?*=10;
??????item?+=?int（c）-int（‘0‘）;
??????c?=?getc（in）;
??????pos++;
????}
????if（pos）?list.push_back（item）;
??}while（c?!=?‘\n‘?&&?!feof（in））;
??
??//?if?end?of?file?is?reached?rewind?to?beginning?for?next?pass
??if（feof（in））{
????rewind（in）;
????return?0;
??}
??//?Note?also?last?transaction?must?end?with?newline?
??//?else?it?will?be?ignored
??
??//?sort?list?of?items
??//?sort（list.begin（）list.end（））;

??//?put?items?in?Transaction?structure
??Transaction?*t?=?new?Transaction（list.size（））;
??for（int?i=0;?i????t->t[i]?=?list[i];

??return?t;
}

Transaction?*Data::getNextAsQuest（）
{
??int?tmptid?tidli;
??Transaction?*t;
	
??fscanf（in“%d?%d?%d“&tmptid&tid&l）;
??if（feof（in））?return?0;
	
??t?=?new?Transaction（l）;
??for（i=0;?it[i]）;
??return?t;
}

Transaction?*Data::getNextBin（）
{
??int?tmptid?tidli;
??Transaction?*t;
	
??fread（&tmptid4?1in）;
??if（feof（in））?return?0;
	
??fread（&tid4?1in）;
??fread（&l4?1in）;
??t?=?new?Transaction（l）;
??for（i=0;?it[i]4?1in）;

??return?t;
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件?????967746??2018-02-01?09:44??fpgrowth\51CTO下載-FP_Growth.rar

?????文件?????122880??2018-02-01?09:43??fpgrowth\51CTO下載-數(shù)據(jù)挖掘關(guān)聯(lián)規(guī)則FP-growth算法.doc

?????文件???????2994??2003-08-05?06:38??fpgrowth\data.cpp

?????文件????????732??2003-04-04?21:01??fpgrowth\data.h

?????文件????????297??2017-12-27?14:03??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\data.m

?????文件???29224320??2017-12-28?10:34??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\DATA.txt

?????文件???????2914??2017-12-28?14:17??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\data1.mat

?????文件???????6175??2017-12-27?11:00??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\data2.mat

?????文件????1172919??2017-12-28?11:21??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\data8.mat

????..A.SH.????????46??2017-12-13?18:55??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\desktop.ini

?????文件????????743??2015-08-28?22:34??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\DisplayRules.m

?????文件???????5617??2017-12-11?19:23??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\FPGrowth.m

?????文件????????595??2015-08-28?22:34??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\GetNonTrivialSubsets.m

?????文件????????678??2017-12-07?11:11??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\GetPowerSet.m

?????文件????????470??2015-08-28?22:34??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\IsSame.m

?????文件???????1350??2015-08-23?04:39??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\license.txt

?????文件????????762??2017-12-28?14:17??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\main.m

?????文件?????291601??2017-12-28?09:24??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\matlab.mat

?????文件???????1593??2017-12-26?10:14??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\mydata.mat

?????文件????????919??2015-08-28?22:34??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\PlotTree.m

?????文件????????121??2015-08-23?04:35??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\www.yarpiz.com.url

?????文件???????2288??2017-12-04?22:00??fpgrowth\FP-Growth?Assiciation?Rule?Mining（matlab）\新建文本文檔.txt

?????文件?????????31??2008-07-19?22:45??fpgrowth\FP-TREE（c算法）\a.txt

?????文件?????????31??2008-08-13?12:10??fpgrowth\FP-TREE（c算法）\b.txt

?????文件?????167988??2008-08-13?12:10??fpgrowth\FP-TREE（c算法）\Debug\fp-growth.exe

????..A.SH.????188336??2008-08-13?12:10??fpgrowth\FP-TREE（c算法）\Debug\fp-growth.ilk

?????文件????????810??2018-02-01?09:45??fpgrowth\FP-TREE（c算法）\Debug\fp-growth.log

?????文件????????620??2018-02-01?09:45??fpgrowth\FP-TREE（c算法）\Debug\fp-growth.tlog\cl.command.1.tlog

?????文件???????4086??2018-02-01?09:45??fpgrowth\FP-TREE（c算法）\Debug\fp-growth.tlog\CL.read.1.tlog

?????文件????????276??2018-02-01?09:45??fpgrowth\FP-TREE（c算法）\Debug\fp-growth.tlog\CL.write.1.tlog

............此處省略49個(gè)文件信息