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lwqs 0.5.1

Maintenance release to restore the package to CRAN (the 0.5.0 version was archived on 2026-02-10 because the maintainer email was undeliverable) and to update for current dependency versions.

Maintainer

• Updated maintainer email address.

Bug fixes

• lwqs() now extracts the time-varying mixture effect and its standard error through the documented predict() interface for mgcv/gamm4 fits, instead of reading positionally from the list invisibly returned by plot.gam(). The previous approach depended on undocumented element ordering and also drew a plot as a side effect.

Improvements

• Added a ci_level argument to lwqs() (default 0.95); the confidence band is now built from the corresponding normal critical value rather than a hard-coded 1.96.
• Removed the hard-coded ylim(-1, 1) on the effect plot, which could silently clip effects and confidence bands that fell outside that range.
• Added input validation for data, timevar, outcome, and ID with informative error messages.
• The per-time-point WQS results are now assembled by named column rather than by position, removing a potential silent column-misalignment.

Compatibility

• Updated examples and vignette to use the gWQS argument b_constr (b1_constr is deprecated in current gWQS).
• Replaced deprecated ggplot2 size aesthetic with linewidth for line geoms.
• geom_smooth() is now called with an explicit formula = y ~ x.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.