When provided a string representing a fraction, parse_fraction will parse
the provided string to create a list with the class fraction applied to
it. This will allow the parsed fraction to be used in subsequent calculations.
parse_fraction(string, improper = TRUE, reduce = TRUE)
| string | The input character to be parsed. |
|---|---|
| improper | Logical. Should the result be kept as an improper fraction?
Defaults to |
| reduce | Logical. Should unreduced fractions be simplified? Defaults
to |
A formatted list printed with print.fraction(). The list
includes four elements:
whole: The absolute value of the whole number part of the decimal. This
is 0 if improper = TRUE.
numerator: The numerator of the resulting fraction.
denominator: The denominator of the resulting fraction.
sign: -1 if the input is negative; 1 if the input is positive.
The string can be entered either as an improper fraction
(for example, "5/2") or as a simplified fraction (for example,
"2 1/2"). Depending on how it is entered, the resulting list
will have a value in "whole" or "whole" will be NULL.
parse_fraction("4/4")#> [1] "1"parse_fraction("4/4", reduce = FALSE)#> [1] "4/4"parse_fraction("32/4")#> [1] "8"parse_fraction("34/4", reduce = FALSE)#> [1] "34/4"parse_fraction("34/4", reduce = TRUE)#> [1] "17/2"parse_fraction("34/4", improper = FALSE)#> [1] "8 1/2"parse_fraction("4 2/4")#> [1] "9/2"parse_fraction("4 2/4", TRUE, FALSE)#> [1] "18/4"parse_fraction("4 2/4", FALSE)#> [1] "4 1/2"