ColumnGroup
-
class
nvtabular.column_group.ColumnGroup(columns)[source] A ColumnGroup is a group of columns that you want to apply the same transformations to. ColumnGroup’s can be transformed by shifting operators on to them, which returns a new ColumnGroup with the transformations applied. This lets you define a graph of operations that makes up your workflow
- Parameters
columns (list of (str or tuple of str)) – The columns to select from the input Dataset. The elements of this list are strings indicating the column names in most cases, but can also be tuples of strings for feature crosses.
-
__add__(other)[source] Adds columns from this ColumnGroup with another to return a new ColumnGroup
- Parameters
other (ColumnGroup or str or list of str) –
- Returns
- Return type
-
__getitem__(columns)[source] Selects certain columns from this ColumnGroup, and returns a new Columngroup with only those columns
- Parameters
columns (str or list of str) – Columns to select
- Returns
- Return type
-
__radd__(other) Adds columns from this ColumnGroup with another to return a new ColumnGroup
- Parameters
other (ColumnGroup or str or list of str) –
- Returns
- Return type
-
__rshift__(operator)[source] Transforms this ColumnGroup by applying an Operator
- Parameters
operators (Operator or callable) –
- Returns
- Return type
-
__sub__(other)[source] Removes columns from this ColumnGroup with another to return a new ColumnGroup
- Parameters
other (ColumnGroup or str or list of str) – Columns to remove
- Returns
- Return type
-
__weakref__ list of weak references to the object (if defined)
-
property
input_column_names Returns the names of columns in the main chain