Create or convert to a mixed units list-column

Usage

mixed_units(x, values, ...)

# S3 method for mixed_units
units(x) <- value

Arguments

x: numeric, or vector of class units
values: character vector with units encodings, or list with symbolic units of class mixed_symbolic_units
...: ignored
value: see values

Details

if x is of class units, values should be missing or of class mixed_symbolic_units; if x is numeric, values should be a character vector the length of x.

Examples

a <- 1:4
u <- c("m/s", "km/h", "mg/L", "g")
mixed_units(a, u)
#> Mixed units: g (1), km/h (1), m/s (1), mg/L (1) 
#> 1 [m/s], 2 [km/h], 3 [mg/L], 4 [g] 
units(a) = as_units("m/s")
mixed_units(a) # converts to mixed representation
#> Mixed units: m/s (4) 
#> 1 [m/s], 2 [m/s], 3 [m/s], 4 [m/s]