我有一个具有这种结构的数据帧Train_classifier:
Note.Reco Reason.Reco Suggestion.Reco Contact
9 absent tomorrow yes
8 absent yes
8 present today no
5 yesterday no
我想从此数据框中删除“Note.Reco”和“Reason.Reco”列的空值所有行。
预期结果:
Note.Reco Reason.Reco Suggestion.Reco Contact
9 absent tomorrow yes
8 absent yes
8 present today no
我尝试使用此R代码:
Train <- Train_classifier[!(!is.na(Train_classifier$Reason.Reco) & Train_classifier$Reason.Reco==''), ]
我收到此错误消息:
Warning message:
In is.na(Train_classifier$Reason.Reco) :
is.na() applied to non-(list or vector) of type 'NULL'
空结果数据框
有什么想法吗?
谢谢
答案 0 :(得分:1)
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