R: Round a numeric vector; halves will be rounded up, ala...

round_half_up {janitor} | R Documentation

## Round a numeric vector; halves will be rounded up, ala Microsoft Excel.

### Description

In base R `round()`, halves are rounded to even, e.g., 12.5 and 11.5 are both rounded to 12. This function rounds 12.5 to 13 (assuming `digits = 0`). Negative halves are rounded away from zero, e.g., -0.5 is rounded to -1.

This may skew subsequent statistical analysis of the data, but may be desirable in certain contexts. This function is implemented exactly from http://stackoverflow.com/a/12688836; see that question and comments for discussion of this issue.

### Usage

    round_half_up(x, digits = 0)

### Arguments

`x` | a numeric vector to round.
`digits` | how many digits should be displayed after the decimal point?

### Examples

    round_half_up(12.5)
    round_half_up(1.125, 2)
    round_half_up(1.125, 1)
    round_half_up(-0.5, 0) # negatives get rounded away from zero

[Package janitor version 1.0.0 Index]