Question 1

How to set up lintr in RStudio?

Accepted Answer

After installing lintr from CRAN, enable it in RStudio via the lintr addin under Tools > Addins. For detailed setup, refer to the vignette('editors') which covers editor integration, including RStudio configuration and shortcuts.

Question 2

lintr vs styler: which one should I use for R code?

Accepted Answer

lintr identifies style and syntax issues for manual fixing, while styler automatically formats code. They are complementary; use both for comprehensive code quality: lintr to catch problems and styler to fix formatting, as noted in the README's complementary relationship.

Question 3

How to disable a specific linter in lintr?

Accepted Answer

Create a .lintr configuration file in your project and modify the linter list using functions like lintr::linters_with_defaults(). You can exclude linters by name or adjust settings to suppress unwanted checks.

Question 4

Does lintr work with R Markdown or Shiny apps?

Accepted Answer

Yes, lintr can analyze R code within R Markdown chunks and Shiny scripts, treating the R code separately. However, it may not lint non-R parts, so ensure proper configuration for mixed-content projects.

Question 5

How to integrate lintr with GitHub Actions for CI?

Accepted Answer

Use usethis::use_github_action('lint-project') for general projects or 'lint' for packages to generate workflow files automatically. This sets up automated linting in your CI pipeline, as described in the README's GitHub Actions section.

Question 6

What are common false positives in lintr and how to handle them?

Accepted Answer

Semantic linters might flag unused variables in interactive scripts or valid coding patterns. Use inline comments like # nolint to suppress warnings or adjust linter configurations in .lintr files to reduce noise.

lintr

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