rendezvous_dataframes

lsst_efd_client.rendezvous_dataframes(left, right, direction='backward', tolerance=Timedelta('20 days 00:00:00'), **kwargs)

Extend each record in left with a corresponding record in “right”, if one exists.

By default, the record in right will be the most recent record in the past. The other options are the closest record in the future and the nearest overall.

Parameters

left: `pd.DataFrame`

The pd.DataFrame to extend

right: `pd.DataFrame`

The pd.DataFrame to rendezvous with left

direction: `str`

The direction to search for the nearest record. Default is backward. The other options are forward and nearest.

tolerance: `pd.Timedelta`

The to,e window to search for the matching record.

kwargs: `dict`

Additional keyword arguments will be forwarded to the pd.merge_asof function.