Add All Survival Metrics Using Optimized Vectorized Operations — add_all_survival_metrics

High-performance implementation that adds all survival metrics using vectorized data.table operations and pre-computed lookup tables instead of loops. Adds median survival times with confidence intervals and current survival probabilities.

Usage

add_all_survival_metrics_optimized(
  data,
  survival_curves,
  contract_type_var,
  duration_var = "survival_time",
  calculate_median_prob = FALSE
)

Arguments

data: A data.table with contract information
survival_curves: List output from estimate_contract_survival_optimized
contract_type_var: Character. Contract type variable name
duration_var: Character. Duration variable name
calculate_median_prob: Logical. DEPRECATED - parameter ignored (for backward compatibility)

Value

Enhanced data.table with survival metrics:

contract_type_median: Median survival time for contract type
median_ci_lower: Lower bound of 95% confidence interval
median_ci_upper: Upper bound of 95% confidence interval
survival_prob: Current survival probability at observed duration