labelled + parameters leads to NA variable labels

[strengejacke]

Fixes #1135

[gemini-code-assist]

Summary of Changes

Hello @strengejacke, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request resolves an issue in the parameters package where variable labels could incorrectly appear as NA when processing models that involve labelled data and interaction terms derived from on-the-fly factor or character conversions. The changes ensure that the underlying variable names are properly identified and used for label lookup, improving the accuracy of the output.

Highlights

• Bug Fix: Variable Label Extraction: Implemented a fix in the format_parameters.parameters_model function to correctly extract variable labels for interaction terms. This specifically addresses cases where variable names might include R's factor(), as.factor(), or as.character() calls, which previously could lead to NA labels.
• Package Version Update: The package version has been incremented from 0.27.0 to 0.27.0.1, indicating a patch release to incorporate this bug fix.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point in your pull request via creating an issue comment (i.e. comment on the pull request page) using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in issue comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist is currently in preview and may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments to provide feedback.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

The pull request fixes an issue where variable labels were not correctly displayed when using labelled + parameters. The changes involve modifying the regular expressions to handle on-the-fly conversion of factors, improving the accuracy of label extraction.