duration.survfunc.SurvfuncRight()
statsmodels.duration.survfunc.SurvfuncRight
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class statsmodels.duration.survfunc.SurvfuncRight(time, status, entry=None, title=None, freq_weights=None)
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Estimation and inference for a survival function.
The survival function S(t) = P(T > t) is the probability that an event time T is greater than t.
This class currently only supports right censoring.
Parameters: time : array-like
An array of times (censoring times or event times)
status : array-like
Status at the event time, status==1 is the ‘event’ (e.g. death, failure), meaning that the event occurs at the given value in
time
; status==0 indicates that censoring has occured, meaning that the event occurs after the given value intime
.entry : array-like, optional An array of entry times for handling
left truncation (the subject is not in the risk set on or before the entry time)
title : string
Optional title used for plots and summary output.
freq_weights : array-like
Optional frequency weights
Attributes
surv_prob (array-like) The estimated value of the survivor function at each time point in surv_times
.surv_prob_se (array-like) The standard errors for the values in surv_prob
.surv_times (array-like) The points where the survival function changes. n_risk (array-like) The number of subjects at risk just before each time value in surv_times
.n_events (array-like) The number of events (e.g. deaths) that occur at each point in surv_times
.Methods
plot
([ax])Plot the survival function. quantile
(p)Estimated quantile of a survival distribution. quantile_ci
(p[, alpha, method])Returns a confidence interval for a survival quantile. simultaneous_cb
([alpha, method, transform])Returns a simultaneous confidence band for the survival function. summary
()Return a summary of the estimated survival function. Methods
plot
([ax])Plot the survival function. quantile
(p)Estimated quantile of a survival distribution. quantile_ci
(p[, alpha, method])Returns a confidence interval for a survival quantile. simultaneous_cb
([alpha, method, transform])Returns a simultaneous confidence band for the survival function. summary
()Return a summary of the estimated survival function.
© 2009–2012 Statsmodels Developers
© 2006–2008 Scipy Developers
© 2006 Jonathan E. Taylor
Licensed under the 3-clause BSD License.
http://www.statsmodels.org/stable/generated/statsmodels.duration.survfunc.SurvfuncRight.html