StatsTFLValR (version 1.0.0)

sas_round: SAS-Compatible Rounding

Description

Performs rounding in the same manner as SAS, where values exactly halfway between two integers are always rounded away from zero. This differs from R's default rounding (IEC 60559), which rounds to the nearest even number ("bankers' rounding").

Usage

sas_round(x, digits = 0)

Value

A numeric vector with values rounded using SAS-compatible logic.

Arguments

x

A numeric vector to be rounded.

digits

Integer indicating the number of decimal places to round to. Default is 0.

Details

In SAS, values like 1.5 or -2.5 are rounded to 2 and -3 respectively. This function emulates that behavior by manually adjusting and checking the fractional component of the value before applying rounding.

Examples

sas_round(c(1.5, 2.5, 3.5, -1.5, -2.5, -3.5))

sas_round(c(1.25, 1.35, -1.25, -1.35), digits = 1)

sas_round(c(1.235, 1.245, -1.235, -1.245), digits = 2)

sas_round(c(1.2345, 1.2355), digits = 3)

sas_round(c(1.23445, 1.23455), digits = 4)

sas_round(c(1.234445, 1.234455), digits = 5)