install_symbolic_unit

uninstall_symbolic_unit

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

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

warn

if <code>TRUE</code>, uninstalls all user defined custom symbolic units

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

Support for measurement units in R vectors, matrices
and arrays: automatic propagation, conversion, derivation
and simplification of units; raising errors in case of unit
incompatibility. Compatible with the POSIXct, Date and difftime
classes. Uses the UNIDATA udunits library and unit database for
unit compatibility checking and conversion.

install_symbolic_unit: Define new symbolic units

Description

Usage

Arguments