x例如,如果是R中的随机森林,
x <- cforest (y~ a+b+c, data = football),
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什么x[[9]]意思?
您无法对此对象进行子集化,因此在某种意义上x[[9]],它不是任何东西,因此无法访问它.
x是S4类的对象"RandomForest-class".该类记录在帮助页面上?'RandomForest-class'.该对象的槽在那里被命名和描述.您还可以通过获取插槽名称slotNames()
library("party")
foo <- cforest(ME ~ ., data = mammoexp, control = cforest_unbiased(ntree = 50))
> slotNames(foo)
[1] "ensemble" "where" "weights"
[4] "initweights" "data" "responses"
[7] "cond_distr_response" "predict_response" "prediction_weights"
[10] "get_where" "update"
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如果x[[9]]你的意思是第九插槽,然后就是predict_weights和?'RandomForest-class'告诉我们,这是
‘prediction_weights’: a function for extracting weights from
terminal nodes.
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