tuts0108-additional-notes.Rmd

---
title: "Additional Notes"
---

## Dependencies

`jmvtools::install()` also downloads all your packages dependencies (listed in `DESCRIPTION`), and bundles them into your module. This ensures that the module has everything it needs, and also that a module will always use predictable dependency versions. This results in larger module file sizes, but arguably is a small price to pay for reproducibility given how inexpensive disk space is.

## Namespaces

We recommend you minimise import statements in your `NAMESPACE` file. These can lead to substantial delays when your package is loading, as *all* listed imports in the `NAMESPACE` file are loaded whether they are required or not.

Instead, access functions with their full namespace, i.e.:

```
stats::t.test(...)
```

With this approach, dependencies are only loaded when they are required. This improves start-up time (the delay between a user selecting one of your analyses, and results appearing for the first time), and can lead to a significant reduction in the amount of RAM your module uses.