install_symbolic_unit {units} | R Documentation |
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.
install_symbolic_unit(name, warn = TRUE, dimensionless = TRUE) remove_symbolic_unit(name)
name |
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. |
dimensionless |
logical; if |
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_constant
or install_conversion_offset
directly.
install_conversion_constant
, install_conversion_offset
install_symbolic_unit("person") set_units(1, rad) + set_units(1, person) # that is how dimensionless units work!