Calculate risk set and event counts at time points

Calculates risk set and event counts for a group at specified time points, with variance estimation.

Usage

calculate_risk_event_counts(U, D, W, at_points, draws = 0, seedstart = 816951)

Arguments

U

Numeric vector of times for group.

D

Numeric vector of event indicators for group.

W

Numeric vector of weights for group.

at_points

Numeric vector of time points.

draws

Number of draws for variance estimation (default 0).

seedstart

Random seed for draws (default 816951).

Value

List with ybar (risk set counts), nbar (event counts), sig2w_multiplier (variance term).