mets (version 1.2)

blocksample: Block sampling

Description

Sample blockwise from clustered data

Usage

blocksample(data, size, idvar = NULL, replace = TRUE, ...)

Arguments

data

Data frame

size

Size of samples

idvar

Column defining the clusters

replace

Logical indicating wether to sample with replacement

…

additional arguments to lower level functions

Value

data.frame

Examples

d <- data.frame(x=rnorm(5), z=rnorm(5), id=c(4,10,10,5,5), v=rnorm(5))
(dd <- blocksample(d,size=20,~id))
attributes(dd)$id

## Not run: ------------------------------------
# blocksample(data.table::data.table(d),1e6,~id)
## ---------------------------------------------