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units (version 0.5-1)

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.

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Install

install.packages('units')

Monthly Downloads

328,156

Version

0.5-1

License

GPL-2

Issues

14

Pull Requests

0

Stars

183

Forks

32

Maintainer

Edzer Pebesma

Last Published

January 8th, 2018

Functions in units (0.5-1)

plot.units

create axis label with appropriate labels
seq.units

seq method for units objects
as_difftime

convert units object into difftime object
as_units

convert object to a units object
ud_units

List containing pre-defined units from the udunits2 package.
unitless

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

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

Deprecated functions
drop_units

drop units
hist.units

histogram for unit objects
set_units

set_units
tibble

type_sum function for units
install_conversion_constant

Install a function for conversion between user-defined units.
install_conversion_function

Install a function for conversion between user-defined units.
install_symbolic_unit

Define new symbolic units
matmult

matrix multiplication
valid_udunits

Get information about valid units
Math.units

Mathematical operations for units objects
Ops.units

S3 Ops Group Generic Functions for units objects
units

Set measurement units on a numeric vector
units_options

set one or more units global options