predict() does not work when variables are transformed within formula

[lang-benjamin]

predict() won't work if some variable is transformed within the formula specificaton. For example:

library(mmrm)
#> Warning: package 'mmrm' was built under R version 4.2.3
fit <- mmrm(
  formula = log(FEV1) ~ RACE + SEX + ARMCD * AVISIT + us(AVISIT | USUBJID),
  data = fev_data
)
predict(fit)
#> Error in eval(formula_parts$full_formula[[2]], envir = data): object 'FEV1' not found

# session info
sessionInfo()
#> R version 4.2.2 (2022-10-31 ucrt)
#> Platform: x86_64-w64-mingw32/x64 (64-bit)
#> Running under: Windows 10 x64 (build 19045)
#> 
#> Matrix products: default
#> 
#> locale:
#> [1] LC_COLLATE=German_Germany.utf8  LC_CTYPE=German_Germany.utf8   
#> [3] LC_MONETARY=German_Germany.utf8 LC_NUMERIC=C                   
#> [5] LC_TIME=German_Germany.utf8    
#> 
#> attached base packages:
#> [1] stats     graphics  grDevices utils     datasets  methods   base     
#> 
#> other attached packages:
#> [1] mmrm_0.3.11
#> 
#> loaded via a namespace (and not attached):
#>  [1] Rcpp_1.0.12       TMB_1.9.10        pillar_1.9.0      compiler_4.2.2   
#>  [5] R.methodsS3_1.8.2 R.utils_2.12.3    tools_4.2.2       digest_0.6.34    
#>  [9] evaluate_0.23     lifecycle_1.0.4   tibble_3.2.1      checkmate_2.3.1  
#> [13] nlme_3.1-160      R.cache_0.16.0    lattice_0.20-45   pkgconfig_2.0.3  
#> [17] rlang_1.1.2       reprex_2.1.0      Matrix_1.6-5      cli_3.6.2        
#> [21] rstudioapi_0.15.0 yaml_2.3.8        parallel_4.2.2    xfun_0.42        
#> [25] fastmap_1.1.1     withr_3.0.0       styler_1.10.2     stringr_1.5.1    
#> [29] knitr_1.45        generics_0.1.3    fs_1.6.3          vctrs_0.6.5      
#> [33] grid_4.2.2        glue_1.7.0        fansi_1.0.6       Rdpack_2.6       
#> [37] rmarkdown_2.26    purrr_1.0.2       magrittr_2.0.3    backports_1.4.1  
#> [41] htmltools_0.5.7   rbibutils_2.2.16  utf8_1.2.4        stringi_1.8.3    
#> [45] R.oo_1.26.0

^{Created on 2024-04-26 with reprex v2.1.0}

[danielinteractive]

Thanks @lang-benjamin, I think we very recently fixed this in #438, can you please the try the current
development version if it works for you?

[lang-benjamin]

Thanks. Yes, it works with the development version! I was looking at closed issues, but apparently overlooked this one.