{"provider_name":"Hatena Blog","width":"100%","blog_url":"https://ryamada.hatenadiary.jp/","height":"190","url":"https://ryamada.hatenadiary.jp/entry/20110911/1315371653","author_name":"ryamada","description":"\u30bd\u30fc\u30b9\u306f\u3001\u975e\u5e38\u306b\u91cd\u3044\u306e\u3060\u304c\u2026 SimplexVolume<-function(x,Factorial=FALSE){ n<-length(x[,1]) #d<-t(x[2:n,])-x[1,] d<-apply(x,2,FUN=\"diff\") if(Factorial){ ret<-log(abs(det(d))) - lfactorial(n-1) }else{ ret<-log(abs(det(d))) } return(ret) } SimplexVolume2<-function(x,Factorial=FALSE){ n<-length(x[,1]) tmpX<-t(x[2:n,])\u2026","title":"\u305f\u3068\u3048\u3070","provider_url":"https://hatena.blog","version":"1.0","blog_title":"ryamada\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fb\u6570\u5b66\u30e1\u30e2","categories":["\u30b0\u30e9\u30d5","\u5b8c\u5168\u30b0\u30e9\u30d5"],"author_url":"https://blog.hatena.ne.jp/ryamada/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fryamada.hatenadiary.jp%2Fentry%2F20110911%2F1315371653\" title=\"\u305f\u3068\u3048\u3070 - ryamada\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fb\u6570\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>","type":"rich","published":"2011-09-11 14:00:53","image_url":null}