Add factors to data set based on spec information

Add factors to data set based on spec information

yspec_add_factors(.data, .spec, ..., .suffix = getOption("ys.fct.suffix",
  "_f"))

yspec_make_factor(values, x)

Arguments

.data

the data set to modify
.spec

a yspec object
...

unquoted column names for modification
.suffix

used to make the column name for the factors
values

a vector of values to convert to a factor
x

a ycol object

Details

Note that `.suffix` can be chosen using option `ys.fct.suffix`.

Examples


spec <- load_spec_ex()

yspec_make_factor(c(1,0,1,1,1,0), spec$SEX)
#> [1] female male   female female female male  
#> Levels: male female

data <- data.frame(SEX = c(1,1,1,1,0,0,1,1), STUDY= c(202,100))

yspec_add_factors(data, spec, SEX, STUDY)
#>   SEX STUDY  SEX_f
#> 1   1   202 female
#> 2   1   100 female
#> 3   1   202 female
#> 4   1   100 female
#> 5   0   202   male
#> 6   0   100   male
#> 7   1   202 female
#> 8   1   100 female
#>                                                                                                   STUDY_f
#> 1 The first phase 2 study conducted only at sites 1, 2, 3 when the formulation was still oral liquid only
#> 2                                                                                 The first phase 1 study
#> 3 The first phase 2 study conducted only at sites 1, 2, 3 when the formulation was still oral liquid only
#> 4                                                                                 The first phase 1 study
#> 5 The first phase 2 study conducted only at sites 1, 2, 3 when the formulation was still oral liquid only
#> 6                                                                                 The first phase 1 study
#> 7 The first phase 2 study conducted only at sites 1, 2, 3 when the formulation was still oral liquid only
#> 8                                                                                 The first phase 1 study