Query Parameter Combinations
This guide explains the main parameters for CloudQuant Data Liberator queries and the expected results from different combinations.
Core Parameters
| Parameter | Description | Default |
|---|
name | Dataset identifier (required) | — |
symbols | Single symbol or list, e.g. ['AAPL','GOOG','MSFT'] | None (all symbols) |
back_to | Query start date | None |
as_of | Query end date | Current date/time |
fields | Specify desired columns to reduce download time | All columns |
stats | Set to 'Total' for symbol counts instead of full results | — |
Use liberator.datasets(entitled=True) to list all datasets available to you.
Query Examples
All parameters included
df = liberator.get_dataframe(liberator.query(
name = 'daily_bars',
as_of = '2024-07-24',
back_to = '2024-07-16',
symbols = ['AAPL', 'GOOGL']))
Without symbols
df = liberator.get_dataframe(liberator.query(
name = 'daily_bars',
as_of = '2024-07-24',
back_to = '2024-07-16'))
Without as_of
df = liberator.get_dataframe(liberator.query(
name = 'daily_bars',
back_to = '2024-07-22'))
as_of to current time, returning data from present back to specified date.
Without back_to
df = liberator.get_dataframe(liberator.query(
name = 'daily_bars',
as_of = '2023-12-25'))
Minimal query (name only)
df = liberator.get_dataframe(liberator.query(name = 'daily_bars'))
