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Round to Significant Digits

round_like.Rd

Priority:

  1. If sdig is provided, round x to that many significant digits.

  2. If sdig is NULL but ref is provided, infer the number of significant digits from ref.

  3. If both are NULL, return x unchanged.

Usage

round_like(x, ref = NULL, sdig = NULL)

Arguments

x

Numeric vector to round.

ref

Optional numeric vector used to infer the number of significant digits.

sdig

Optional integer specifying the number of significant digits to apply.

Value

A numeric vector rounded to the appropriate precision.

Examples

round_like(123.456, sdig = 2)       # -> 120
#> [1] 120
round_like(123.456, ref = 12.3)     # -> 123
#> [1] 123
round_like(123.456, ref = 12.34)    # -> 123.5
#> [1] 123.5
round_like(123.456)                 # -> 123.456
#> [1] 123.456