# lifetab

0th

Percentile

##### Create cohort life table

Create cohort life table.

Keywords
manip
##### Usage
lifetab(tis, ninit, nlost, nevent)
##### Arguments
tis
a vector of end points of time intervals, whose length is 1 greater than nlost and nevent.
ninit
the number of subjects initially entering the study.
nlost
a vector of the number of individuals lost follow or withdrawn alive for whatever reason.
nevent
a vector of the number of individuals who experienced the event
##### Value

A data.frame with the following columns:
nsubs
the number of subject entering the intervals who have not experienced the event.
nlost
the number of individuals lost follow or withdrawn alive for whatever reason.
nrisk
the estimated number of individuals at risk of experiencing the event.
nevent
the number of individuals who experienced the event.
surv
the estimated survival function at the start of the intervals.
pdf
the estimated probability density function at the midpoint of the intervals.
hazard
the estimated hazard rate at the midpoint of the intervals.
se.surv
the estimated standard deviation of survival at the beginning of the intervals.
se.pdf
the estimated standard deviation of the prbability density function at the midpoint of the intervals.
se.hazard
the estimated standard deviation of the hazard function at the midpoint of the intervals
The row.names are the intervals.

• lifetab
##### Examples
tis <- c(0, 2, 3, 5, 7, 11, 17, 25, 37, 53, NA)
nsubs <- c(927, 848, 774, 649, 565, 449, 296, 186, 112, 27)
nlost <- c(2, 3, 6, 9, 7, 5, 3, rep(0, 3))
nevent <- c(77, 71, 119, 75, 109, 148, 107, 74, 85, 27)

lifetab(tis, nsubs[1], nlost, nevent)

Documentation reproduced from package KMsurv, version 0.1-5, License: GPL (>= 3)

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