{"author_url":"https://blog.hatena.ne.jp/ryamada22/","provider_name":"Hatena Blog","author_name":"ryamada22","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fryamada22.hatenablog.jp%2Fentry%2F20091231%2F1262208135\" title=\"order()\u95a2\u6570 - ryamada\u306e\u907a\u4f1d\u5b66\u30fb\u907a\u4f1d\u7d71\u8a08\u5b66\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"categories":["R","\u884c\u5217","\u30bd\u30fc\u30c8"],"height":"190","title":"order()\u95a2\u6570","url":"https://ryamada22.hatenablog.jp/entry/20091231/1262208135","blog_url":"https://ryamada22.hatenablog.jp/","published":"2009-12-31 06:22:15","blog_title":"ryamada\u306e\u907a\u4f1d\u5b66\u30fb\u907a\u4f1d\u7d71\u8a08\u5b66\u30e1\u30e2","width":"100%","version":"1.0","provider_url":"https://hatena.blog","type":"rich","description":"> x <- c(9,9:1) > y <- c(1,1,3:1,1:4,3) > z <-c(2,1:9) > mat<-matrix(c(x,y,z),nrow=length(x)) > mat [,1] [,2] [,3] [1,] 9 1 2 [2,] 9 1 1 [3,] 8 3 2 [4,] 7 2 3 [5,] 6 1 4 [6,] 5 1 5 [7,] 4 2 6 [8,] 3 3 7 [9,] 2 4 8 [10,] 1 3 9 > ordmat<-mat[order(mat[,3]),] > ordmat [,1] [,2] [,3] [1,] 9 1 1 [2,] 9 1\u2026"}