performs a L-statistic for right-censored and binary data.

lstats(
  time,
  status,
  binary,
  treat,
  tau0 = 0,
  tau = NULL,
  taub = NULL,
  rho = 0,
  gam = 0,
  eta = 1,
  wb = 0.5,
  ws = 0.5,
  var_est = "Unpooled"
)

Arguments

time

The observed time.

status

The status indicator, normally 0=alive, 1=dead.

binary

0=nonresponse, 1=response.

treat

The treatment-group indicator, normally 0=control, 1=intervention.

tau0

starting follow-up (survival outcome). Default =0.

tau

follow-up. Default NULL denoting the last time in which both groups had patients at risk.

taub

time-point at which the binary endpoint is evaluated. If NULL, the binary endpoint is evaluated at tau.

rho

A scalar parameter that controls the type of test (see Weights).

gam

A scalar parameter that controls the type of test (see Weights).

eta

A scalar parameter that controls the type of test (see Weights).

wb

A scalar parameter that controls the type of test (see Weights).

ws

A scalar parameter that controls the type of test (see Weights).

var_est

indicates the variance estimate to use ('Pooled' or 'Unpooled')

Value

List: standardized statistic, statistic and variance.

Author

Marta Bofill Roig