# Examples
The following examples are included in the [`examples/`](https://github.com/CDCgov/ixa/tree/main/examples) directory:
## Feature Demos
### `basic`
A minimal example that creates a `Context`, schedules a single plan, and prints
the current simulation time. Good starting point for understanding the basic
structure of an ixa model.
```sh
cargo run --example basic
```
### `parameter-loading`
Demonstrates how to load simulation parameters from a JSON file using
`load_parameters_from_json` and store them as global properties.
```sh
cargo run --example parameter-loading
```
### `profiling`
Demonstrates the profiling module: counting events, opening spans, computing
statistics, and writing profiling data to JSON.
```sh
cargo run --example profiling
```
## End-to-end Examples
### `basic-infection`
A simple SIR model with a constant force of infection applied to a
homogeneous population. Demonstrates entity definitions, property changes,
event observation, and report writing.
```sh
cargo run --example basic-infection
```
### `births-deaths`
Extends the basic infection model with birth and death processes, age groups,
and age-varying force of infection. Demonstrates dynamic population changes,
plan cancellation on death, and person property lookups.
```sh
cargo run --example births-deaths
```
### `network-hhmodel`
A network module (using ixa's `network` extentension) which loads a population
with household structure from CSV files and spreads infection along network edges
with different transmission rates by edge type.
```sh
cargo run --example network-hhmodel
```
## External examples
* [ixa-epi-covid](https://github.com/CDCgov/ixa-epi-isolation)
* [ixa-epi-isolation](https://github.com/CDCgov/ixa-epi-isolation)