function?centroids?=?computeCentroids（X?idx?K）
%計算聚類中心，就是同一類取平均值
[~n]?=?size（X）;
centroids?=?zeros（K?n）;
for?i=1:K
????indices?=?idx?==?i;
????for?j=1:n
????????centroids（i?j）?=?sum（X（:?j）?.*?indices）?/?sum（indices）;
????end
end
end

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

?????文件????????256??2019-03-05?16:10??computeCentroids.m

?????文件????????361??2018-05-25?09:49??findClosestCentroids.m

?????文件??????56277??2019-03-05?16:02??football_test.mat

?????文件???????4358??2019-03-05?16:01??karate_test.mat

?????文件????????186??2018-05-25?09:47??kMeansInitCentroids.m

?????文件????????544??2019-03-05?17:51??main.m

?????文件????????420??2019-03-05?16:11??runkMeans.m

-----------?---------??----------?-----??----

????????????????62402????????????????????7