我正在尝试评估子产品促销之间的互动。
我的数据集统计了1073个二元变量(x
)和11个依存变量(y
)。我在R中使用rfsrc
包。
fit2=rfsrc(Multivar(y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11) ~.,data = data3, importance =TRUE)
err <- get.mv.error(fit2)
err
vmp.std <- get.mv.vimp(fit2, standardize = TRUE)
plot(fit2)
为什么默认情况下,R只给我y1
作为回应?
Sample size: 602
Number of trees: 1000
Forest terminal node size: 5
Average no. of terminal nodes: 179.484
No. of variables tried at each split: 358
Total no. of variables: 1073
Total no. of responses: 11
User has requested response: y1
Resampling used to grow trees: swr
Resample size used to grow trees: 602
Analysis: mRF-R
Family: regr+
Splitting rule: mv.mse *random*
Number of random split points: 10
% variance explained: 53.03
Error rate: 0.4
有一些命令可以绘制一些信息吗?
答案 0 :(得分:0)
如果您查看调用plot.variable.rfsrc.R的源代码以绘制您的randomForestSRC对象,则m.target
的默认值为NULL
并将其馈送到另一个函数{{3} },它将采用第一个变量。如果要绘制其他变量,请指定m.target=...
library(mlr)
library(randomForestSRC)
yeast = getTaskData(yeast.task)
data = yeast[,c(1:3,15:100)]
head(data)
fit = rfsrc(Multivar(label1,label2,label3) ~.,data = data, importance =TRUE)
plot(fit,m.target="label2")
plot(fit,m.target="label3")