README.md

# Example 2: A custom configuration

__Working directory:__ `/path/to/nshmp-haz/etc/examples/2-custom-config`

Navigate to the directory above and execute the following:

```Shell
hazard ../../peer/models/Set1-Case1 site.csv config.json
```

In this example we've overridden the configuration supplied by the model. Specifically:

* The upper end of each hazard curve has been truncated at 3 standard deviations.
* Hazard curves have been saved as poisson probability instead of annual rate.
* Hazard curves have been calculated for 3 `imts`
 ([intensity measures](https://earthquake.usgs.gov/nshmp/docs/nshmp-lib/gov/usgs/earthquake/nshmp/gmm/Imt.html),
  or spectral periods).
* The `imls` (intensity measure levels or x-values) of the resultant curves
have been explicitely defined for each `imt`.

See the [configuration specification](../../../docs/pages/Calculation-Configuration.md)
for details on default values and supported options and formats.

__Results directory structure:__

```text
2-custom-config/
  └─ hazout/
      ├─ calc-config.json
      ├─ HazardCalc.log
      ├─ PGA/
      │   ├─ curves.csv
      │   ├─ curves-truncated.csv
      │   └─ map.csv
      ├─ SA0P2/
      │   ├─ curves.csv
      │   ├─ curves-truncated.csv
      │   └─ map.csv
      └─ SA1P0/
          ├─ curves.csv
          ├─ curves-truncated.csv
          └─ map.csv
```

<!-- markdownlint-disable MD001 -->
#### Next: [Example 3 – Using a custom sites file](../3-sites-file/README.md)

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