Make units explicit

This function is intended for data frames / tibbles only and makes the specified columns explicit with the target units in the column name.

make_qty_units_explicit(df, ..., prefix = " [", suffix = "]")

Arguments

df	the data frame in which to make the units explicit
...	named arguments for the columns that should be made explicit and their units, e.g. salt_weight = "mg", salt_concentration = "M".
prefix	the prefix for the units
suffix	the suffix for the units

See also

Other quantity functions: check_quantities, metric_scaling, quantities, quantity_data, quantity_units

Examples

# data frame with quantities
df <- tibble(x = qty(1:5, "mg"), y = qty(1:5, "L"))
df
#> # A tibble: 5 x 2
#>         x      y
#>   <m[mg]> <V[L]>
#> 1       1      1
#> 2       2      2
#> 3       3      3
#> 4       4      4
#> 5       5      5

# show with explicit units
make_qty_units_explicit(df, x = "mg")
#> # A tibble: 5 x 2
#>   `x [mg]`      y
#>      <dbl> <V[L]>
#> 1        1      1
#> 2        2      2
#> 3        3      3
#> 4        4      4
#> 5        5      5
make_qty_units_explicit(df, x = "g", y = "mL")
#> # A tibble: 5 x 2
#>   `x [g]` `y [mL]`
#>     <dbl>    <dbl>
#> 1   0.001     1000
#> 2   0.002     2000
#> 3   0.003     3000
#> 4   0.004     4000
#> 5   0.005     5000