units {quantities}R Documentation

Handle Measurement Units on a Numeric Vector

Description

Set or retrieve measurement units to/from numeric vectors and convert units (extensions to the units package for quantities and errors objects).

Usage

## S3 replacement method for class 'quantities'
units(x) <- value

## S3 replacement method for class 'errors'
units(x) <- value

## S3 method for class 'quantities'
set_units(x, value, ...,
  mode = units_options("set_units_mode"))

## S3 method for class 'errors'
set_units(x, value, ...,
  mode = units_options("set_units_mode"))

## S3 method for class 'quantities'
mixed_units(x, values, ...)

## S3 method for class 'errors'
mixed_units(x, values, ...)

Arguments

x

numeric vector, or object of class units

value

object of class units or symbolic_units, or in the case of set_units expression with symbols that can be resolved in ud_units (see examples).

...

passed on to as_units

mode

if "symbols" (the default), then unit is constructed from the expression supplied. Otherwise, ifmode = "standard", standard evaluation is used for the supplied value This argument can be set via a global option units_options(set_units_mode = "standard")

values

character vector with units encodings, or list with symbolic units of class mixed_symbolic_units

See Also

units, set_units.


[Package quantities version 0.1.3 Index]