##
# Advanced Data Processing Pipeline

This project implements a sophisticated data processing pipeline using Python, designed to handle large-scale data processing tasks efficiently. The pipeline includes various stages such as data loading, cleaning, transformation, analysis, and visualization.

This package is available on PyPI, and you can view it at the provided URL: [https://pypi.org/project/advanced-data-processing/0.1.0/](https://pypi.org/project/advanced-data-processing/0.1.0/).

[![PyPI version](https://badge.fury.io/py/advanced-data-processing.svg)](https://badge.fury.io/py/advanced-data-processing)

## Features

- Flexible data loading from various sources (CSV, Excel, JSON, Parquet, SQL databases, APIs, S3)
- Efficient data cleaning and preprocessing using Dask for large datasets
- Advanced data transformation techniques (scaling, encoding, feature engineering)
- Text analytics capabilities (sentiment analysis, summarization)
- Named Entity Recognition (NER) for extracting entities from text data
- Topic modeling for uncovering latent topics in text corpora
- Data visualization tools for exploratory data analysis
- Feature selection and dimensionality reduction techniques
- Integration with machine learning models for predictive analytics
- Robust error handling and logging mechanisms
- Configurable pipeline steps via YAML configuration files
- Distributed processing and caching for improved performance
- Automatic feature engineering
- Handling of imbalanced datasets
- Automatic hyperparameter tuning

## Requirements

See `requirements.txt` for a full list of dependencies. Key libraries include:

- pandas
- dask
- dask-ml
- scikit-learn
- nltk
- spacy
- gensim
- matplotlib
- seaborn
- imbalanced-learn

## Installation

You can install the package directly from PyPI:

```bash
pip install advanced-data-processing
```

Alternatively, if you are working from a local clone of the repository:

Install the required dependencies:

```
pip install -r requirements.txt
```

To build and install the package locally:

```
pip install -e .
```

## Usage

### Basic Usage

To use the package in another Python project:

```python
from advanced_data_processing import process_data, load_data, clean_data

# Use the functions as needed
data = load_data("path/to/your/data.csv")
cleaned_data = clean_data(data)
processed_data = process_data(cleaned_data, steps=['transform', 'feature_engineering'])
```

### Configuration

Configure your pipeline in `config.yaml`:

```yaml
source: 'path/to/your/data.csv'
steps: ['load', 'clean', 'transform']
output_file: 'path/to/output.csv'
# Add other configuration parameters as needed
```

The `config.yaml` file should include the following parameters:
- `source`: Path to the input data file
- `steps`: List of processing steps to execute
- `output_file`: Path for the processed output file
- `file_type`: Type of the input file (e.g., 'csv', 'json', 'parquet')
- `text_column`: Name of the column containing text data (for text analytics)
- `model_type`: Type of model to use for predictive analytics

### Command-line Usage

Run the pipeline from the command line:

```
adp --config config.yaml
```

Or:

```
python data_processing/main.py --config config.yaml
```

### Command-line Arguments

You can customize the pipeline execution with various command-line arguments:

- `--resume`: Resume from a saved pipeline state
- `--plugins`: Load custom plugins (specify paths to plugin files)
- `--n_workers`: Number of workers for parallel processing
- `--scheduler_address`: Address of the Dask scheduler for distributed processing
- `--visualize`: Generate visualizations
- `--analyze_text`: Perform text analytics
- `--use_cache`: Use cached results
- `--generate_report`: Generate a comprehensive report
- `--auto_feature_engineering`: Perform automatic feature engineering
- `--handle_imbalanced`: Handle imbalanced datasets
- `--auto_tune`: Perform automatic hyperparameter tuning

### Examples

Generate visualizations:
```
python data_processing/main.py --config config.yaml --visualize
```

Perform text analytics:
```
python data_processing/main.py --config config.yaml --analyze_text
```

Use cached results and generate a report:
```
python data_processing/main.py --config config.yaml --use_cache --generate_report
```

Perform automatic feature engineering and handle imbalanced data:
```
python data_processing/main.py --config config.yaml --auto_feature_engineering --handle_imbalanced
```

## Advanced Features

### Custom Plugins

You can extend the pipeline's functionality using custom plugins:

1. Create a Python file with your custom function(s).
2. Use the `--plugins` argument to specify the path to your plugin file(s) when running the pipeline.

### Resuming from a Saved State

You can resume the pipeline from a previously saved state using the `--resume` option:
```
python data_processing/main.py --config config.yaml --resume pipeline_state_step_name.pkl
```

### Distributed Processing

This pipeline uses Dask for distributed processing. You can specify the number of workers or provide a Dask scheduler address:

```
python data_processing/main.py --config config.yaml --n_workers 4
```

or

```
python data_processing/main.py --config config.yaml --scheduler_address tcp://scheduler-address:8786
```

You can also set a memory limit for Dask workers:

```
python data_processing/main.py --config config.yaml --n_workers 4 --memory_limit 4GB
```

### Caching and Intermediate Results

To use caching and save intermediate results:

```
python data_processing/main.py --config config.yaml --use_cache --save_intermediate --intermediate_path ./intermediate/
```

### Automatic Hyperparameter Tuning

To perform automatic hyperparameter tuning for machine learning models:

```
python data_processing/main.py --config config.yaml --auto_tune
```

## Customizing the Pipeline

The pipeline can be customized for different types of datasets by modifying the configuration file. Here are some examples:

### For Time-Series Data:

```yaml
feature_engineering:
  create_time_features: true
  time_column: 'timestamp'

data_transformation:
  numerical_features:
    - 'value'
    - 'year'
    - 'month'
    - 'day'
  categorical_features:
    - 'day_of_week'
  scaling_method: 'minmax'
```

### For NLP Data:

```yaml
feature_engineering:
  create_text_features: true
  text_columns:
    - 'text_content'

data_transformation:
  text_features:
    - 'text_content'
  text_vectorization_method: 'tfidf'
```

### For Tabular Data:

```yaml
feature_engineering:
  create_polynomial_features: true
  create_interaction_features: true

data_transformation:
  numerical_features:
    - 'feature1'
    - 'feature2'
  categorical_features:
    - 'category1'
    - 'category2'
  scaling_method: 'standard'
  encoding_method: 'onehot'
```

## Pipeline Steps

The main processing steps are defined in the `process_data` function. These include:

### Data Loading

The pipeline supports loading data from various sources.

### Data Cleaning

Data cleaning operations include handling missing values, outliers, and duplicates.

### Data Transformation

The pipeline offers various data transformation techniques.

### Feature Engineering

Automatic feature engineering is supported.

### Handling Imbalanced Data

The pipeline can handle imbalanced datasets.

## Error Handling

Robust error handling is implemented throughout the pipeline.

## Comprehensive Report

To generate a comprehensive report of the data processing steps and results, use the `--generate_report` flag:

```
python data_processing/main.py --config config.yaml --generate_report
```

The report includes:
- Configuration details
- Completed processing steps
- Data shape and types
- Summary statistics
- Output file location

The report is saved as 'pipeline_report.txt' in the project directory.

## Example Usage

Here's a detailed example of how to use the pipeline:

```python
from advanced_data_processing import process_data, load_config

# Load configuration
config = load_config('config.yaml')

# Process data
processed_data = process_data('path/to/your/data.csv', config=config)

# Save processed data
processed_data.to_csv('processed_data.csv', index=False)
```

To run the pipeline from the command line with all options:

```
python main.py --config config.yaml --output processed_data.csv --visualize --analyze_text --extract_entities --model_topics --select_features --reduce_dimensions --validate_schema --summary_stats --auto_feature_engineering --handle_imbalanced --auto_tune
```

## Contributing

Contributions to improve the pipeline are welcome. Please follow these steps:

1. Fork the repository
2. Create a new branch (`git checkout -b feature-branch`)
3. Make your changes and commit (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin feature-branch`)
5. Create a new Pull Request

## License

This project is licensed under the MIT License - see the LICENSE file for details.

## Documentation

For more detailed usage instructions and examples, please refer to the full documentation [here](https://pypi.org/project/advanced-data-processing/0.1.0/).