package?com.mingrisoft.math;

import?java.util.Random;

import?org.apache.commons.math.stat.Frequency;

public?class?FrequencyTest?{
????public?static?void?main（String[]?args）?{
????????Frequency?frequency?=?new?Frequency（）;
????????for?（int?i?=?0;?i?????????????frequency.addValue（new?Random（）.nextInt（10））;//?增加100個小于10的隨機數
????????}
????????System.out.println（“頻度分布直方圖“）;
????????for?（int?i?=?0;?i?????????????System.out.print（“數值“?+?i?+?“的頻度：“）;
????????????for?（int?j?=?0;?j?????????????????System.out.print（“*“）;
????????????}
????????????System.out.println（“\t“?+?frequency.getCumFreq（i））;//?輸出累計頻度
????????}
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????295??2010-09-11?17:01??.classpath
?????文件?????????379??2010-09-11?17:01??.project
?????文件?????9894738??2010-09-26?16:15??繪制簡單的直方圖.exe
?????文件????????1392??2013-11-21?08:41??bin\com\mingrisoft\math\FrequencyTest.class
?????文件??????832410??2013-11-18?14:40??lib\commons-math-2.1.jar
?????文件?????????794??2010-09-11?17:01??src\com\mingrisoft\math\FrequencyTest.java