📅  最后修改于: 2022-03-11 14:52:00.258000             🧑  作者: Mango
df <- data.frame(x = c(1,2,NA), y = rep(NA, 3))
# Which column has na?
colSums(is.na(df))[colSums(is.na(df)) > 0]
# which rows?
df[which(rowSums(is.na(df)) > 0),]