dt_dia: Train a Decision Tree Model for Classification

In E2E: Ensemble Learning Framework for Diagnostic and Prognostic Modeling

Train a Decision Tree Model for Classification

Description

Trains a single Decision Tree model using caret::train (via rpart method) for binary classification.

Usage

dt_dia(X, y, tune = FALSE, cv_folds = 5)

Arguments

X	A data frame of features.
y	A factor vector of class labels.
tune	Logical, whether to perform hyperparameter tuning for cp (complexity parameter) (if TRUE) or use a fixed value (if FALSE).
cv_folds	An integer, the number of cross-validation folds for caret.

Value

A caret::train object representing the trained Decision Tree model.

Examples

set.seed(42)
n_obs <- 50
X_toy <- data.frame(
  FeatureA = rnorm(n_obs),
  FeatureB = runif(n_obs, 0, 100)
)
y_toy <- factor(sample(c("Control", "Case"), n_obs, replace = TRUE),
                levels = c("Control", "Case"))

# Train the model
dt_model <- dt_dia(X_toy, y_toy)
print(dt_model)

E2E documentation built on Aug. 27, 2025, 1:09 a.m.