yrosseel/lavaan

an R package for structural equation modeling and more

What it solves

It provides a free, open-source alternative to commercial software for latent variable analysis, allowing users to estimate complex multivariate statistical models.

How it works

Users define their models using a specific syntax to specify latent variable definitions, regressions, and residual covariances, which the package then estimates using data.

Who it’s for

Researchers, teachers, and R users who need commercial-quality latent variable modeling tools.

Highlights

  • Supports path analysis, confirmatory factor analysis, structural equation modeling (SEM), and growth curve models.
  • Available as an R package via CRAN and GitHub.
  • Designed to replicate state-of-the-art capabilities of commercial packages.

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