bifactory 0.5.1

Changes in response to CRAN review (no changes to estimation results):

• DESCRIPTION: all acronyms are now spelled out on first use (WLSMV, MLR, DWLS, ICM-CFA); removed quotes around efa().
• Console output outside print()/summary() methods now uses message() (or warning() where appropriate) instead of cat()/print(), so it can be suppressed with suppressMessages(). Progress output keeps its verbose gating.
• parameters() now returns a classed data frame (bifactory_parameters) that prints the same formatted table via its own print() method. Assigning the result no longer prints as a side effect.
• Random-number state is no longer saved to and restored from .GlobalEnv; internal fixed-seed sections use withr::with_seed() (new Import: withr). Draws are unchanged, so results are identical to 0.5.0.
• Examples rewritten to be self-contained and executable (lavaan::HolzingerSwineford1939); \dontrun{} is retained only for examples that require a licensed Mplus installation or open an interactive editor. Longer-running examples use \donttest{}. No runnable example uses a package from Suggests.

bifactory 0.5.0

• Initial CRAN submission.

Features

• Bifactor ESEM (B-ESEM), standard ESEM, and CFA for continuous and ordered-categorical data.
• Continuous models via ‘lavaan’ native efa() blocks (MLR).
• Ordered-categorical ESEM via ‘lavaan’ WLSMV; ordered B-ESEM via a custom diagonally weighted least squares (DWLS) path with polychoric correlations from ‘psych’, rotation-delta standard errors via ‘numDeriv’, and mean-and-variance-adjusted chi-square.
• Target, geomin, and oblimin rotations via ‘GPArotation’; the bifactor ESEM approach follows Morin, Arens and Marsh (2016).
• Multi-group measurement invariance (configural through strict, with partial invariance), ESEM-within-CFA conversion, McDonald’s omega reliability suite, and the Mehrvarz and Rouder (2026) alignment-ratio check for ICM-CFA misspecification.
• Optional side-by-side comparison with Mplus output via ‘MplusAutomation’.