as_fraction: Convert a Decimal to an Approximate Fraction

In mrdwab/mathrrr: Basic School-type Math in R

Description

The as_fraction function takes a numeric input and converts it to a fraction. The input is first rounded to the desired level of precision (entered as a value between 1 and 7).

Usage

as_fraction(number, precision = 3, improper = TRUE)

Arguments

number	The decimal you want to convert to a fraction.
precision	The number of digits to round the decimal to before trying to convert the result to a fraction. Must be greater than 1 but less than 8.
improper	Logical. Should the fraction be a returned as an improper fraction or a proper fraction? Defaults to TRUE.

Value

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 NULL 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; 0 if the input is zero.

Examples

as_fraction(3.2454)
as_fraction(3.2454, 2, TRUE)
as_fraction(3.2454, 2, FALSE)
as_fraction(3.2454, 1, FALSE)

mrdwab/mathrrr documentation built on July 20, 2020, 11:14 p.m.