extract_ptype | R Documentation |
extract_ptype()
extracts a tibble with 0 rows from data
. This contains
all of the required information about column names, classes, and factor
levels that are required to check the structure of new data at prediction
time.
extract_ptype(data)
data |
A data frame or matrix. |
extract_ptype()
is useful when creating a new preprocessing blueprint
. It
extracts the required information that will be used by the validation checks
at prediction time.
A 0 row slice of data
after converting it to a tibble.
hardhat:::extract_ptype(iris)
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