Convert an object to "wide" or "long" form.
Convert an object to "wide" or "long" form.
asWide(x, ...) ## S3 method for class 'ten' asWide(x, ...) asLong(x, ...) ## S3 method for class 'ten' asLong(x, ...)
x |
An object of class |
... |
Additional arguments (not implemented). |
A new data.table is returned,
with the data in 'wide' or 'long' format.
There is one row for each time point.
For a ten object generated from a numeric or Surv object,
this has columns:
t |
time. |
e |
number of events. |
n |
number at risk. |
If derived from a survfit, coxph or formula object,
there are additional columns for e and n
for each covariate group.
Most methods for ten objects are designed for the 'long' form.
## Not run:
data("bmt", package="KMsurv")
require("survival")
t1 <- ten(c1 <- coxph(Surv(t2, d3) ~ z3*z10, data=bmt))
asWide(t1)
## End(Not run)
## Not run:
asLong(asWide(t1))
stopifnot(asLong(asWide(t1)) == ten(ten(t1)))
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.