Check if an object is of class das_dfr
, or coerce it if possible.
as_das_dfr(x)# S3 method for das_dfr
as_das_dfr(x)
# S3 method for data.frame
as_das_dfr(x)
an object to be coerced to class das_dfr
An object of class `das_dfr`
Only data frames can be coerced to an object of class das_dfr
.
If x
does not have column names and classes as specified in das_dfr-class
,
then the function returns an error message detailing the first column that does not
meet the requirements of a das_dfr
object.