R Under development (unstable) (2025-09-11 r88813 ucrt) -- "Unsuffered Consequences"
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> #' Predictive Modeling Module Test Suite
> #'
> #' This script validates the predictive modeling components
> #' including complication risk prediction, treatment response analysis,
> #' and risk stratification capabilities.
> #'
> #' Key Tests:
> #' - Complication risk prediction (PJI, DVT, revision)
> #' - Treatment response prediction
> #' - Risk stratification and clustering
> #' - Feature importance analysis
> #' - Model calibration and uncertainty quantification
> 
> # Load required libraries
> library(data.table)
> library(dplyr)

Attaching package: 'dplyr'

The following objects are masked from 'package:data.table':

    between, first, last

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

> if (requireNamespace("caret", quietly = TRUE)) {
+   library(caret)
+ } else {
+   message("caret package not available, skipping predictive modeling tests")
+   quit(save = "no", status = 0)
+ }
caret package not available, skipping predictive modeling tests
> proc.time()
   user  system elapsed 
   0.50    0.14    0.62