function to assign labels to levels of a variable
util_assign_levlabs(
variable,
string_of_levlabs,
splitchar,
assignchar,
ordered = TRUE
)a data.frame with labels assigned to categorical variables (if available)
vector vector with values of a study variable
character len=1. value labels,
e.g. 1 = no | 2 = yes
character len=1. splitting character(s) in
string_of_levlabs, usually SPLIT_CHAR
character len=1. assignment operator character(s) in
string_of_levlabs, usually = or :
the function converts variable to a factor, by default to
an ordered factor assuming LHS of assignments being
meaningful numbers, e.g. 1 = low | 2 = medium | 3 = high.
If no special order is given, set ordered to FALSE,
e.g. for 1 = male | 2 = female or
1 = low | 2 = high | 3 = medium.