check_values: Check Values
Description
Checks the class and values of columns in data.Usage
check_values(data, values = NULL, unique = TRUE, nulls = FALSE,
data_name = substitute(data))
Arguments
data
The data frame to check.
values
A named list specifying the columns and
their associated classes and values.
unique
A string indicating if columns must only be defined in values.
nulls
A string indicating if values can be NULL.
data_name
A string of the name of data.
Value
Throws an informative error or returns an invisible copy of
the data.