Weibull Accelerated Failure Time model fitting, exact/ right-censored responses only. See fast_weibull_regression_general_cpp for the left-/interval-censored extension.
Usage
fast_weibull_regression_cpp(
X,
y,
dead,
warm_start_params = NULL,
smart_cold_start = TRUE,
estimate_only = FALSE,
maxit = 100L,
tol = 1e-08,
fixed_idx = NULL,
fixed_values = NULL,
optimization_alg = "lbfgs",
warm_start_fisher_info = NULL
)Arguments
- X
A numeric matrix of predictors.
- y
A numeric vector of survival times.
- dead
A numeric vector of event indicators (1=event, 0=censored).
- warm_start_params
Optional starting values for coefficients.
- smart_cold_start
Logical. If TRUE, use an initial OLS-based guess.
- estimate_only
Logical. If TRUE, do not compute variance-covariance.
- maxit
Maximum number of iterations.
- tol
Convergence tolerance.
- fixed_idx
Optional indices of fixed parameters.
- fixed_values
Optional values for fixed parameters.
- optimization_alg
Optimization algorithm.
- warm_start_fisher_info
Optional initial Fisher Information matrix.