View source: R/summary.flexsurvmix.R
ajfit | R Documentation |
Given a fitted flexsurvmix model, return the Aalen-Johansen estimates of the
probability of occupying each state at a series of times covering the
observed data. State 1 represents not having experienced any of the
competing events, while state 2 and any further states correspond to having
experienced each of the competing events respectively. These estimates can
be compared with the fitted probabilities returned by
p_flexsurvmix
to check the fit of a flexsurvmix
model.
ajfit(x, newdata = NULL, tidy = TRUE)
x |
Fitted model returned by |
newdata |
Data frame of alternative covariate values to check fit for. Only factor covariates are supported. |
tidy |
If |
This is only supported for models with no covariates or models containing only factor covariates.
For models with factor covariates, the Aalen-Johansen estimates are computed
for the subsets of the data defined in newdata
. If newdata
is
not supplied, then this function returns state occupancy probabilities for
all possible combinations of the factor levels.
The Aalen-Johansen estimates are computed using
survfit
from the survival
package (Therneau
2020).
Therneau T (2020). _A Package for Survival Analysis in R_. R package version 3.2-3, <URL: https://CRAN.R-project.org/package=survival>.
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