如果不处理数据 直接回归
Call:
randomForest(formula = DA_DEMD ~ Hour, data = tr, ntree = 1000, importance = T)
Type of random forest: regression
Number of trees: 1000
No. of variables tried at each split: 1
Mean of squared residuals: 4969417
% Var explained: -38.74
明显有问题


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