I have a dataframe with this structure:
df <- data.frame(
stringsAsFactors = FALSE,
V1 = c("a", "b", "a", "b", "a", "b", "a"),
V2 = c(8974L, 8547L, 3695L, 1554L, 3658L, 2541L, 9852L)
)
Can I modify numbers in column V2 adding "." as separator?