# User Guide Task-oriented guides to using PhysioEx: loading physiological datasets, preprocessing signals, training and evaluating models, driving the command-line interface, and explaining trained models. New to PhysioEx? Start with **Data** to see how recordings are loaded, then **Preprocessing** to shape the signals, then **Training** to fit a model. For the complete symbol-level reference see the [API Reference](../api/index.md); for the internal design (class diagrams) see the architecture links in [Contributing](contribute.md). ```{toctree} :maxdepth: 2 data preprocess train/train train/cli train/networks explain/explain ```