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Co-authored-by: tehcoderer <tehcoderer@users.noreply.github.com>
Co-authored-by: Jeroen Bouma <jer.bouma@gmail.com>
Co-authored-by: Chavithra PARANA <chavithra@gmail.com>
Co-authored-by: Chavithra <Chavithra@users.noreply.github.com>
Co-authored-by: jose-donato <43375532+jose-donato@users.noreply.github.com>
Co-authored-by: jose-donato <jose-donato@users.noreply.github.com>
2022-11-25 17:19:08 -05:00

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---
title: brnn
description: OpenBB Terminal Function
---
# brnn
Perform BRNN forecast (Vanilla RNN, LSTM, GRU): https://unit8co.github.io/darts/generated_api/darts.models.forecasting.block_rnn_model.html
### Usage
```python
brnn [--n-rnn-layers N_RNN_LAYERS] [--past-covariates PAST_COVARIATES] [--all-past-covariates] [--naive] [-d {}] [-c TARGET_COLUMN] [-n N_DAYS] [-t TRAIN_SPLIT] [-i INPUT_CHUNK_LENGTH] [-o OUTPUT_CHUNK_LENGTH] [--force-reset FORCE_RESET] [--save-checkpoints SAVE_CHECKPOINTS] [--model-save-name MODEL_SAVE_NAME] [--n-epochs N_EPOCHS] [--model-type MODEL_TYPE] [--dropout DROPOUT] [--batch-size BATCH_SIZE] [--end S_END_DATE] [--start S_START_DATE] [--learning-rate LEARNING_RATE] [--residuals] [--forecast-only] [--export-pred-raw]
```
---
## Parameters
| Name | Description | Default | Optional | Choices |
| ---- | ----------- | ------- | -------- | ------- |
| n_rnn_layers | Number of layers in the RNN module. | 1 | True | None |
| past_covariates | Past covariates(columns/features) in same dataset. Comma separated. | None | True | None |
| all_past_covariates | Adds all rows as past covariates except for date and the target column. | False | True | None |
| naive | Show the naive baseline for a model. | False | True | None |
| target_dataset | The name of the dataset you want to select | None | True | None |
| target_column | The name of the specific column you want to use | close | True | None |
| n_days | prediction days. | 5 | True | None |
| train_split | Start point for rolling training and forecast window. 0.0-1.0 | 0.85 | True | None |
| input_chunk_length | Number of past time steps for forecasting module at prediction time. | 14 | True | None |
| output_chunk_length | The length of the forecast of the model. | 5 | True | None |
| force_reset | If set to True, any previously-existing model with the same name will be reset (all checkpoints will be discarded). | True | True | None |
| save_checkpoints | Whether to automatically save the untrained model and checkpoints. | True | True | None |
| model_save_name | Name of the model to save. | brnn_model | True | None |
| n_epochs | Number of epochs over which to train the model. | 300 | True | None |
| model_type | Either a string specifying the RNN module type ("RNN", "LSTM" or "GRU") | LSTM | True | None |
| dropout | Fraction of neurons affected by Dropout, from 0 to 1. | 0 | True | None |
| batch_size | Number of time series (input and output) used in each training pass | 32 | True | None |
| s_end_date | The end date (format YYYY-MM-DD) to select for testing | None | True | None |
| s_start_date | The start date (format YYYY-MM-DD) to select for testing | None | True | None |
| learning_rate | Learning rate during training. | 0.001 | True | None |
| residuals | Show the residuals for the model. | False | True | None |
| forecast_only | Do not plot the historical data without forecasts. | False | True | None |
| export_pred_raw | Export predictions to a csv file. | False | True | None |
---
## Examples
```python
2022 Jul 23, 10:36 (🦋) /forecast/ $ load GME_20220719_123734.csv -a GME
2022 Jul 23, 11:03 (🦋) /forecast/ $ brnn GME
100%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 115/115 [00:0700:00, 15.10it/s]
Block RNN model obtains MAPE: 17.09%
Actual price: $ 146.64
┏━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Datetime ┃ Prediction ┃
┡━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━┩
│ 2022-07-19 00:00:00 │ $ 147.89 │
├─────────────────────┼────────────┤
│ 2022-07-20 00:00:00 │ $ 149.11 │
├─────────────────────┼────────────┤
│ 2022-07-21 00:00:00 │ $ 149.59 │
├─────────────────────┼────────────┤
│ 2022-07-22 00:00:00 │ $ 141.46 │
├─────────────────────┼────────────┤
│ 2022-07-25 00:00:00 │ $ 144.99 │
└─────────────────────┴────────────┘
```
![brnn](https://user-images.githubusercontent.com/72827203/180615365-1644ce7a-050e-4ee1-92c2-4518db14f53d.png)
---