NEWS

xpose.nlmixr2 0.4.2 (2026-05-09)

xpose_data_nlmixr2() now populates $files (parameter history) for all estimation methods that provide par.hist, not only SAEM (#6).
xpose_data_nlmixr2() no longer crashes with "undefined columns selected" for FOCEi fits where one or more etas are fixed to zero variance (eta ~ 0), which causes the omega matrix to include more etas than the eta table (#10).
The default gg_theme argument is now theme_readable (the function itself) rather than theme_readable() (a pre-evaluated theme object), matching the convention used in the parent xpose package (#9).
xpose_data_nlmixr2() now stops with a descriptive error when weighted residuals (wres) or population predictions (pred) cannot be determined automatically, as happens with likelihood-based models using ll() or models without IIV. Users should specify these manually (e.g. pred = "IPRED", wres = "IWRES") (#7, #8).
xpose_data_nlmixr2() no longer crashes with "undefined columns selected" when importing a fit without IIV and pred/wres are supplied manually (#8).