round_away_0 takes a numeric vector, rounds them to a specified digit amount using the round away from 0 method for ties (i.e. 1.5). This is the SAS method for rounding.
round_away_0(x, digits = 0, trailing_zeros = FALSE)
| x | numeric vector (can include NA values). |
|---|---|
| digits | positive integer of length 1 between 0 (default) and 14, giving the amount of digits to round to. |
| trailing_zeros | logical indicating if trailing zeros should included (i.e. 0.100 instead of 0.1). Note is set to TRUE output is a character vector |
if trailing_zeros = TRUE returns a character vector of rounded values with trailing zeros, otherwise returns a numeric vector of rounded values.
round_away_0 is not designed for use at precision levels <= 1e-15
vals_to_round = c(NA,-3.5:3.5,NA) # [1] NA -3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 NA # round() will round to even numbers when tied at X.5 round(vals_to_round)#> [1] NA -4 -2 -2 0 0 2 2 4 NA# [1] NA -4 -2 -2 0 0 2 2 4 NA # round_away_0() will round away from 0 when tied at X.5 round_away_0(vals_to_round)#> [1] NA -4 -3 -2 -1 1 2 3 4 NA# [1] NA -4 -3 -2 -1 1 2 3 4 NA # Can force trailing zeros (will output character vector) round_away_0(vals_to_round, digits = 2, trailing_zeros = TRUE)#> [1] NA "-3.50" "-2.50" "-1.50" "-0.50" "0.50" "1.50" "2.50" "3.50" #> [10] NA