Calls survival::survfit()
.
distr is predicted by estimating the survival function with
survival::survfit()
crank
is predicted as the sum of the cumulative hazard function (expected mortality) derived from the survival distribution,distr
Dictionary
This Learner can be instantiated via the dictionary mlr_learners or with the associated sugar function lrn():
References
Kaplan EL, Meier P (1958). “Nonparametric Estimation from Incomplete Observations.” Journal of the American Statistical Association, 53(282), 457–481. doi:10.1080/01621459.1958.10501452 .
See also
Other survival learners:
mlr_learners_surv.coxph
,
mlr_learners_surv.rpart
Super classes
mlr3::Learner
-> mlr3proba::LearnerSurv
-> LearnerSurvKaplan
Methods
Method importance()
All features have a score of 0
for this learner.
#' This method exists solely for compatibility with the mlr3
ecosystem,
as this learner is used as a fallback for other survival learners that
require an importance()
method.
Returns
Named numeric()
.
Method selected_features()
Selected features are always the empty set for this learner.
This method is implemented only for compatibility with the mlr3
API,
as this learner does not perform feature selection.