QueryBuilder.rename

from tmlt.analytics import QueryBuilder

QueryBuilder.rename(column_mapper)

Renames one or more columns in the table.

Example

>>> my_private_data.toPandas()
   A  B  X
0  0  1  0
1  1  0  1
2  1  2  1
>>> budget = PureDPBudget(float("inf"))
>>> sess = Session.from_dataframe(
...     privacy_budget=budget,
...     source_id="my_private_data",
...     dataframe=my_private_data,
...     protected_change=AddOneRow(),
... )
>>> # Building a query with a rename transformation
>>> query = (
...     QueryBuilder("my_private_data")
...     .rename({"X": "C"})
...     .groupby(KeySet.from_dict({"C": [0, 1]}))
...     .count()
... )
>>> # Answering the query with infinite privacy budget
>>> answer = sess.evaluate(
...     query,
...     PureDPBudget(float("inf"))
... )
>>> answer.sort("C").toPandas()
   C  count
0  0      1
1  1      2

Parameters:

column_mapper (Dict[str, str]) – A mapping of columns to new column names. Columns not specified in the mapper will remain the same.

Return type:

QueryBuilder