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units (version 0.7-2)

Measurement Units for R Vectors

Description

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. Documentation about 'units' is provided in the paper by Pebesma, Mailund & Hiebert (2016, ), included in this package as a vignette; see 'citation("units")' for details.

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Version

Install

install.packages('units')

Monthly Downloads

285,965

Version

0.7-2

License

GPL-2

Issues

14

Pull Requests

0

Stars

183

Forks

32

Maintainer

Edzer Pebesma

Last Published

June 8th, 2021

Functions in units (0.7-2)

keep_units

Apply a function keeping units
mixed_units

Create or convert to a mixed units list-column
plot.units

create axis label with appropriate labels
drop_units

Drop Units
valid_udunits

Get information about valid units
units_options

set one or more units global options
load_units_xml

Load a unit system
units

Handle measurement units
unitless

The "unit" type for vectors that are actually dimension-less.
seq.units

seq method for units objects
ud_are_convertible

Test if two units are convertible
install_unit

Define or remove units
install_conversion_constant

Install a conversion constant or offset between user-defined units.
as_difftime

convert units object into difftime object
Math.units

Mathematical operations for units objects
install_symbolic_unit

Define new symbolic units
Ops.units

S3 Ops Group Generic Functions for units objects
hist.units

histogram for unit objects
deparse_unit

deparse unit to string in product power form (e.g. km m-2 s-1)
boxplot.units

boxplot for unit objects