0byt3m1n1
Path:
C:
/
Program Files
/
R
/
R-4.2.2
/
library
/
vroom
/
bench
/
taxi
/
[
Home
]
File: read.delim-base.R
({}) x <- read.delim(file, sep = ",", quote = "", na.strings = NULL, stringsAsFactors = FALSE) print(head(x, 10)) a <- head(x) b <- tail(x) c <- x[sample(NROW(x), 100), ] d <- x[x$payment_type == "UNK", ] e <- tapply(x$tip_amount, x$payment_type, mean)