data_prep {iclogcondist} | R Documentation |
Prepare Data for Interval-Censored Model
Description
This function processes interval-censored data and prepares various components needed for model fitting, including unique time points, censoring intervals, and weights.
Usage
data_prep(X)
Arguments
X |
A matrix or data frame of interval-censored data where each row contains the lower and upper bounds of the interval for each observation. |
Value
A list containing:
- tau
Unique time points.
- m
The number of unique time points (excluding infinity if present).
- L_Rc
Indices of observations where the event is in the intersection of L group and the complement of R group. The L group consists of samples with left intervals time <= min(all right intervals time). The R group consists of samples with infinity right interval time.
- Lc_R
Indices of observations where the event is in the intersection of the complement of L group and R group.
- Lc_Rc
Indices of observations where the event is in the intersection of the complement of L group and the complement of R group.
- ri
Indices corresponding to the right bounds of the intervals in
tau
.- li
Indices corresponding to the left bounds of the intervals in
tau
.- tau_no_Inf
Unique time points excluding infinity.
- weight
Weights for each unique interval.
- X
Processed matrix of interval-censored data with unique rows.