Answers for "r count()"

C
2

count row r

nrow(df)
Posted by: Guest on April-03-2021
0

null count in r

df <- data.frame(x = c(1,2,NA), y = rep(NA, 3))

colSums(is.na(df))

#x y 
#1 3
Posted by: Guest on October-21-2021

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