install_symbolic_unit {units}R Documentation

Define new symbolic units

Description

Adding a symbolic unit allows it to be used in as_units, make_units and set_units. No installation is performed if the unit is already known by udunits.

Usage

install_symbolic_unit(chr, warn = TRUE)

remove_symbolic_unit(chr)

Arguments

chr

a length 1 character vector that is the unit name or symbol.

warn

warns if the supplied unit symbol is already a valid unit symbol recognized by udunits.

Details

install_symbolic_unit installs a new dimensionless unit; these are directly compatible to any other dimensionless unit. To install a new unit that is a scaled or shifted version of an existing unit, use install_conversion_constatn or install_conversion_offset directly.

Examples

install_symbolic_unit("person")
set_units(1, rad) + set_units(1, person) # that is how dimensionless units work!

[Package units version 0.6-0 Index]