A string ID for the FRED series. Required parameter.
realtime_start
A Date indicating the start of the real-time period.
Defaults to today's date. For more information, see
Real-Time Periods.
realtime_end
A Date indicating the end of the real-time period.
Defaults to today's date. For more information, see
Real-Time Periods.
Value
A tibble object with information on the categories to
which the series specified by series_id belongs. Data include category ID,
name, parent category ID, and notes.