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units (version 0.8-6)

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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Install

install.packages('units')

Monthly Downloads

314,809

Version

0.8-6

License

GPL-2

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Maintainer

Edzer Pebesma

Last Published

March 8th, 2025

Functions in units (0.8-6)

unitless

The "unit" type for vectors that are actually dimension-less.
udunits2

udunits2 utilities
units-defunct

Defunct functions in units
keep_units

Apply a function keeping units
plot.units

Plot units objects
scale_units

Position scales for units data
cbind.units

Combine R Objects by Rows or Columns
install_unit

Define or remove units
hist.units

histogram for unit objects
Math.units

Mathematical operations for units objects
deparse_unit

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

boxplot for unit objects
as_difftime

convert units object into difftime object
Ops.units

S3 Ops Group Generic Functions for units objects
drop_units

Drop Units
load_units_xml

Load a unit system
units

Handle measurement units
mixed_units

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

seq method for units objects
units_options

set one or more units global options
valid_udunits

Get information about valid units