Math.units              Mathematical operations for units objects
Ops.units               S3 Ops Group Generic Functions for units
                        objects
as.dt                   convert units object into difftime object
as.units                convert object to a units object
as_cf                   deparse unit to string in product power form
                        (e.g. km m-2 s-1)
hist.units              histogram for unit objects
make_unit               Create a new unit from a unit name.
parse_unit              parse unit in product power form (e.g. km m-2
                        s-1)
plot.units              create axis label with appropriate labels
type_sum.units          type_sum for tidy tibble printing
ud_units                List containing pre-defined units from the
                        udunits2 package.
unitless                The "unit" type for vectors that are actually
                        dimension-less.
units                   Set measurement units on a numeric vector
units_options           set one or more units global options
