Estimate the baseline cumulative hazard and survival
functions.
- Parameters:
- params
ndarray
The model parameters.
- Returns:
A
list
of
triples
(time
, hazard
, survival
) containing
the
time
values
and
corresponding
cumulative
hazard
and
survival
function
values
for
each
stratum.
Notes
Uses the Nelson-Aalen estimator.