所以我有一个数据帧: df1。我想根据两个变量的值!= NULL来选择行。
例如:
Variable1 Variable2
NULL 5
6 NULL
NULL NULL
3 6
1 9结果:
Variable1 Variable2
3 6
1 9发布于 2019-05-27 16:55:23
df1 <- data.frame(Variable1 = c("NULL", 6, "NULL", 3, 1), Variable2 = c(5, "NULL", "NULL", 6, 9))
df1 <- df1[df1$Variable1 != "NULL" & df1$Variable2 != "NULL",]https://stackoverflow.com/questions/56322641
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