/*

?*?Copyright?（c）?2003-2005?The?BISON?Project

?*

?*?This?program?is?free?software;?you?can?redistribute?it?and/or?modify

?*?it?under?the?terms?of?the?GNU?Lesser?General?Public?License?version?2?as

?*?published?by?the?Free?Software?Foundation.

?*

?*?This?program?is?distributed?in?the?hope?that?it?will?be?useful

?*?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of

?*?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the

?*?GNU?Lesser?General?Public?License?for?more?details.

?*

?*?You?should?have?received?a?copy?of?the?GNU?Lesser?General?Public?License

?*?along?with?this?program;?if?not?write?to?the?Free?Software

?*?Foundation?Inc.?675?Mass?Ave?Cambridge?MA?02139?USA.

?*

?*/



package?peersim.extras.gj.isearch;



import?java.util.Random;

import?java.lang.Math;



/**

?*?Simple?distributions?not?provided?by?Java.

?*/

public?class?Distribution?extends?Random?{

????

????private?static?final?long?serialVersionUID?=?1L;



????public?Distribution（long?seed）?{

????????super（seed）;

????}

????

????public?int?nextPoisson（double?mean）?{

????????double?emean?=?Math.exp（-1?*?mean）;

????????double?product?=?1;

????????int?count?=?0;

????????int?result?=?0;

????????while?（product?>=?emean）?{

????????????product?*=?nextDouble（）;

????????????result?=?count;

????????????count++;?//?keep?result?one?behind

????????}

????????return?result;

????}



????public?double?nextExponential（double?b）?{

????????return?-1?*?b?*?Math.log（nextDouble（））;

????}



????public?double?nextPower（double?base?double?a）?{

????????return?base?/?Math.pow（nextDouble（）?a）?-?base;

????}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????136404??2007-12-24?06:47??Peersim合集\4peersim代碼示例\peersim源碼注釋和示例\djep-1.0.0.jar

?????文件??????75818??2007-12-24?06:47??Peersim合集\4peersim代碼示例\peersim源碼注釋和示例\jep-2.3.0.jar

?????文件?????557531??2008-01-22?22:28??Peersim合集\4peersim代碼示例\peersim源碼注釋和示例\PdProtocol.pdf

?????文件??????17483??2005-09-01?20:58??Peersim合集\4peersim代碼示例\peersim源碼注釋和示例\slacer.jar

?????文件?????438446??2008-03-18?22:25??Peersim合集\4peersim代碼示例\peersim源碼注釋和示例\TrustModelSimulation.rar

?????文件????????659??2008-03-20?11:06??Peersim合集\4peersim代碼示例\peersim源碼注釋和示例\說明.txt

?????目錄??????????0??2009-05-23?16:12??Peersim合集\4peersim代碼示例\peersim源碼注釋和示例

?????目錄??????????0??2009-05-23?16:12??Peersim合集\4peersim代碼示例

?????文件????????874??2008-01-04?00:35??Peersim合集\isearch\isearch\configs\config-isearch.txt

?????文件?????????55??2008-10-13?10:54??Peersim合集\isearch\isearch\configs\CVS\Entries

?????文件?????????46??2008-10-13?10:54??Peersim合集\isearch\isearch\configs\CVS\Repository

?????文件?????????65??2008-10-13?10:54??Peersim合集\isearch\isearch\configs\CVS\Root

?????目錄??????????0??2009-05-23?16:12??Peersim合集\isearch\isearch\configs\CVS

?????目錄??????????0??2009-05-23?16:12??Peersim合集\isearch\isearch\configs

?????文件????????468??2008-10-13?10:54??Peersim合集\isearch\isearch\CVS\Entries

?????文件?????????38??2008-10-13?10:54??Peersim合集\isearch\isearch\CVS\Repository

?????文件?????????65??2008-10-13?10:54??Peersim合集\isearch\isearch\CVS\Root

?????目錄??????????0??2009-05-23?16:12??Peersim合集\isearch\isearch\CVS

?????文件???????1698??2008-01-04?00:35??Peersim合集\isearch\isearch\Distribution.java

?????文件????????886??2008-01-04?00:35??Peersim合集\isearch\isearch\README

?????文件???????1434??2008-01-04?00:35??Peersim合集\isearch\isearch\RRWProtocol.java

?????文件???????3038??2008-01-04?00:35??Peersim合集\isearch\isearch\RWProtocol.java

?????文件???????7644??2008-05-21?23:49??Peersim合集\isearch\isearch\SearchDataInitializer.java

?????文件???????5216??2008-01-04?00:35??Peersim合集\isearch\isearch\SearchObserver.java

?????文件??????18655??2008-05-21?23:49??Peersim合集\isearch\isearch\SearchProtocol.java

?????文件???????2919??2008-01-04?00:35??Peersim合集\isearch\isearch\SearchStats.java

?????文件???????2551??2008-01-04?00:35??Peersim合集\isearch\isearch\SMessage.java

?????目錄??????????0??2009-05-23?16:12??Peersim合集\isearch\isearch

?????目錄??????????0??2009-05-23?16:12??Peersim合集\isearch

?????文件????1497865??2008-11-09?15:53??Peersim合集\peersim-1.0.4.zip

............此處省略14個文件信息