enquos retrieves names of arguments from as.list(match.call()) and
returns names within three dots ....
checkEnquos() checks colon separators as well as variables whether they
are specified or not. if not, it gets all variables within the dataset.
enquos(.args, .argsName)checkEnquos(.data, .vars, .types = "tab")
argument lists from as.list(match.call())
Names of arguments to be removed.
Dataset
.vars obtained with as.character(enquos())
"tab" to get categorical data; otherwise, numerical data
A character vector
checkEnquos: