preload_data#
- preload_data(client, create_trading_universe, candle_time_frame_override=None)[source]#
Show nice progress bar for setting up data fees for backtesting trading universe.
We trigger call to create_trading_universe before the actual backtesting begins
The client is in a mode that it will display dataset download progress bars. We do not display these progress bars by default, as it could a bit noisy.
- Parameters
client (Client) –
create_trading_universe (Callable) –
candle_time_frame_override (Optional[TimeBucket]) –