R: Test if two units are convertible

ud_are_convertible {units} | R Documentation

## Test if two units are convertible

### Description

Parses and checks whether units can be converted by UDUNITS-2. Units may not be convertible either because they are different magnitudes or because one (or both) units are not defined in the database.

### Usage

    ud_are_convertible(x, y)

### Arguments

`x` | character or object of class `symbolic_units`, for the symbol of the first unit.
`y` | character or object of class `symbolic_units`, for the symbol of the second unit.

### Value

boolean, `TRUE` if both units exist and are convertible.

### Examples

    ud_are_convertible("m", "km")
    a <- set_units(1:3, m/s)
    ud_are_convertible(units(a), "km/h")
    ud_are_convertible("s", "kg")

[Package units version 0.8-0 Index]