{"nbformat":4,"nbformat_minor":0,"metadata":{"colab":{"private_outputs":true,"provenance":[],"authorship_tag":"ABX9TyMuiqnUdpXJr+DoITFro6h6"},"kernelspec":{"name":"ir","display_name":"R"},"language_info":{"name":"R"}},"cells":[{"cell_type":"code","source":["install.packages(\"randomForest\")\n","library(randomForest)"],"metadata":{"id":"X8gj3gvugQhX"},"execution_count":null,"outputs":[]},{"cell_type":"code","source":["data(iris)\n","iris.rf <- randomForest(iris[,-5], iris[,5], prox=TRUE)\n","iris.p <- classCenter(iris[,-5], iris[,5], iris.rf$prox)\n","plot(iris[,3], iris[,4], pch=21, xlab=names(iris)[3], ylab=names(iris)[4],\n","bg=c(\"red\", \"blue\", \"green\")[as.numeric(factor(iris$Species))],\n","main=\"Iris Data with Prototypes\")\n","points(iris.p[,3], iris.p[,4], pch=21, cex=2, bg=c(\"red\", \"blue\", \"green\"))"],"metadata":{"id":"yy_NjClAdwj5"},"execution_count":null,"outputs":[]},{"cell_type":"code","source":["iris"],"metadata":{"id":"Uxm91rgLglBZ"},"execution_count":null,"outputs":[]},{"cell_type":"code","source":["data(iris)\n","rf1 <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)\n","#열을 예측할 타겟(목표) 변수로 설정하고, 나머지 열들을 입력 변수로 사용합니다(~ .는 모든 열을 의미).\n","rf2 <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)\n","rf3 <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)\n","rf.all <- combine(rf1, rf2, rf3)\n","print(rf.all)"],"metadata":{"id":"Uv2Sbyqmdwqo"},"execution_count":null,"outputs":[]},{"cell_type":"code","source":["data(iris)\n","iris.rf <- randomForest(Species ~ ., iris, ntree=50, norm.votes=FALSE)\n","iris.rf <- grow(iris.rf, 50)\n","print(iris.rf)\n"],"metadata":{"id":"lWiW-v4AdwtK"},"execution_count":null,"outputs":[]}]}