select column constructor

Make a Transformation that retrieves the column key from a dataframe as Vec<TOA>.

Usage

make_select_column(key, .TOA, .K = NULL)

Arguments

key

categorical/hashable data type of the key/column name

.TOA

Atomic Output Type to downcast vector to

.K

data type of key

Value

Transformation

Details

Required features: contrib

make_select_column in Rust documentation.

Supporting Elements:

• Input Domain: DataFrameDomain<K>

• Output Domain: VectorDomain<AtomDomain<TOA>>

• Input Metric: SymmetricDistance

• Output Metric: SymmetricDistance