package?com.hokilin.kmeans;
import?java.io.BufferedReader;??
import?java.io.FileNotFoundException;??
import?java.io.FileReader;??
import?java.io.IOException;??
import?java.util.Random;
??
public?class?KAverage?{??
????private?int?sampleCount?=?0;??
????private?int?dimensionCount?=?0;??
????private?int?centerCount?=?0;??
????private?double[][]?sampleValues;??
????private?double[][]?centers;??
????private?double[][]?tmpCenters;??
????private?String?dataFile?=?““;??
??
????/**?
?????*?通過構造器傳入數據文件?
?????*/??
????public?KAverage（String?dataFile）?throws?NumberInvalieException?{??
????????this.dataFile?=?dataFile;??
????}??
??
????/**?
?????*?第一行為s;d;c含義分別為樣例的數目，每個樣例特征的維數，聚類中心個數?文件格式為d[d]...;d[d]...?如：12;23;15?
?????*?每一維之間用隔開，每個樣例間用;隔開。結尾沒有‘;‘?可以有多行?
?????*/??
??
????private?int?initData（String?fileName）?{??
????????String?line;??
????????String?samplesValue[];??
????????String?dimensionsValue[]?=?new?String[dimensionCount];??
????????BufferedReader?in?=?null;??
????????try?{??
????????????in?=?new?BufferedReader（new?FileReader（fileName））;??
????????}?catch?（FileNotFoundException?e）?{??
????????????e.printStackTrace（）;??
????????????return?-1;??
????????}
????????/*?
?????????*?預處理樣本，允許后面幾維為0時，不寫入文件?
?????????*/??
????????for?（int?i?=?0;?i?????????????for?（int?j?=?0;?j?????????????????sampleValues[i][j]?=?0;??
????????????}??
????????}??
??
????????int?i?=?0;??
????????double?tmpValue?=?0.0;??
????????try?{??
????????????line?=?in.readLine（）;??
????????????String?params[]?=?line.split（“;“）;??
????????????if?（params.length?!=?3）?{//?必須為3個參數，否則錯誤?
????????????	in.close（）;
????????????????return?-1;??
????????????}??
????????????/**?
?????????????*?獲取參數?
?????????????*/??
????????????this.sampleCount?=?Integer.parseInt（params[0]）;??
????????????this.dimensionCount?=?Integer.parseInt（params[1]）;??
????????????this.centerCount?=?Integer.parseInt（params[2]）;??
????????????if?（sampleCount?<=?0?||?dimensionCount?<=?0?||?centerCount?<=?0）?{?
????????????	in.close（）;
????????????????throw?new?NumberInvalieException（“input?number?<=?0.“）;??
????????????}??
????????????if?（sampleCount?????????????	in.close（）;
????????????????throw?new?NumberInvalieException（??
????????????????????????“sample?number?????????????}??
??
????????????sampleValues?=?new?double[sampleCount][dimensionCount?+?1];??
????????????centers?=?new?double[centerCount][dimensionCount];??
????????????tmpCenters?=?new?double[centerCount][dimensionCount];??
??
????????????while?（（line?=?in.readLine（））?!=?null）?{??
????????????????samplesValue?=?line.split（“;“）;??
????????????????for?（int?j?=?0;?j?????????????????????dimensionsValue?=?samplesValue[j].split（““）;??
????????????????????for?（int?k?=?0;?k?????????????????????????tmpValue?=?Double.parseDouble（dimensions

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-05-24?13:43??Kmeans\
?????文件?????????302??2017-05-24?13:43??Kmeans\.classpath
?????文件?????????382??2017-05-24?13:43??Kmeans\.project
?????目錄???????????0??2017-05-24?13:43??Kmeans\.settings\
?????文件?????????598??2017-05-24?13:43??Kmeans\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2017-05-24?21:19??Kmeans\bin\
?????目錄???????????0??2017-05-24?13:43??Kmeans\bin\com\
?????目錄???????????0??2017-05-24?13:43??Kmeans\bin\com\hokilin\
?????目錄???????????0??2017-05-24?13:43??Kmeans\bin\com\hokilin\kmeans\
?????文件????????6294??2017-05-24?13:46??Kmeans\bin\com\hokilin\kmeans\KAverage.class
?????文件?????????902??2017-05-24?13:43??Kmeans\bin\com\hokilin\kmeans\NumberInvalieException.class
?????文件??????????85??2017-05-24?13:45??Kmeans\bin\sample.txt
?????文件??????????89??2017-05-24?20:58??Kmeans\bin\使用說明.txt
?????目錄???????????0??2017-05-24?21:19??Kmeans\src\
?????目錄???????????0??2017-05-24?13:43??Kmeans\src\com\
?????目錄???????????0??2017-05-24?13:43??Kmeans\src\com\hokilin\
?????目錄???????????0??2017-05-24?13:43??Kmeans\src\com\hokilin\kmeans\
?????文件????????9036??2017-05-24?13:46??Kmeans\src\com\hokilin\kmeans\KAverage.java
?????文件?????????603??2017-05-20?11:03??Kmeans\src\com\hokilin\kmeans\NumberInvalieException.java
?????文件??????????85??2017-05-24?13:45??Kmeans\src\sample.txt
?????文件??????????89??2017-05-24?20:58??Kmeans\src\使用說明.txt