joineR: sample.jointdata – R documentation

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sample.jointdata

Sample from a jointdata x

Description

Generic function used to sampling a subset of data from an x of class jointdata, with a specific size of number of subjects.

Usage

sample.jointdata(x, size, replace = FALSE)

Arguments

`x`	an object of class `jointdata`.
`size`	number of subjects to include in the sampled subset.
`replace`	should sampling be with replacement? Default is `replace = TRUE`.

Value

An object of class jointdata, with data only on the subjects sampled.

Author(s)

Ines Sousa (isousa@math.uminho.pt)

Examples

data(heart.valve)
heart.surv <- UniqueVariables(heart.valve, 
                              var.col = c("fuyrs", "status"), 
                              id.col = "num")
heart.valve.jd <- jointdata(survival = heart.surv, 
                            id.col = "num", 
                            time.col = "time")
sample.jointdata(heart.valve.jd, size = 10)

joineR

Joint Modelling of Repeated Measurements and Time-to-Event Data

v1.2.5

GPL-3 | file LICENSE

Authors

Pete Philipson [aut, cre] (<https://orcid.org/0000-0001-7846-0208>), Ines Sousa [aut] (<https://orcid.org/0000-0002-2712-1713>), Peter J. Diggle [aut] (<https://orcid.org/0000-0003-3521-5020>), Paula Williamson [aut] (<https://orcid.org/0000-0001-9802-6636>), Ruwanthi Kolamunnage-Dona [aut] (<https://orcid.org/0000-0003-3886-6208>), Robin Henderson [aut], Graeme L. Hickey [aut] (<https://orcid.org/0000-0002-4989-0054>), Maria Sudell [ctb], Medical Research Council [fnd] (Grant numbers: G0400615 and MR/M013227/1)

Initial release