get-methods: Extractor functions to access components of a permutation design

Description

Simple functions to allow abstracted access to components of a permutation design, for example as returned by how. Whilst many of these are very simple index opertations on a list, using these rather than directly accessing that list allows the internal representation of the permutation design to change without breaking code.

Usage

getAllperms(object, ...)
getBlocks(object, ...)
getComplete(object, ...)
getConstant(object, ...)
getCol(object, ...)
getDim(object, ...)
getMake(object, ...)
getMaxperm(object, ...)
getMinperm(object, ...)
getMirror(object, ...)
getNperm(object, ...)
getObserved(object, ...)
getPlots(object, ...)
getRow(object, ...)
getStrata(object, ...)
getType(object, ...)
getWithin(object, ...)
getControl(object, ...)
getHow(object, ...)
# S3 method for how
getAllperms(object, ...)
# S3 method for how
getBlocks(object, ...)
# S3 method for how
getCol(object, which = c("plots", "within"), ...)
# S3 method for Plots
getCol(object, ...)
# S3 method for Within
getCol(object, ...)
# S3 method for how
getComplete(object, ...)
# S3 method for how
getConstant(object, ...)
# S3 method for Within
getConstant(object, ...)
# S3 method for how
getDim(object, which = c("plots", "within"), ...)
# S3 method for Plots
getDim(object, ...)
# S3 method for Within
getDim(object, ...)
# S3 method for how
getMake(object, ...)
# S3 method for how
getMaxperm(object, ...)
# S3 method for how
getMinperm(object, ...)
# S3 method for how
getMirror(object, which = c("plots", "within"), ...)
# S3 method for Plots
getMirror(object, ...)
# S3 method for Within
getMirror(object, ...)
# S3 method for how
getNperm(object, ...)
# S3 method for how
getObserved(object, ...)
# S3 method for how
getPlots(object, ...)
# S3 method for how
getRow(object, which = c("plots", "within"), ...)
# S3 method for Plots
getRow(object, ...)
# S3 method for Within
getRow(object, ...)
# S3 method for how
getStrata(object, which = c("plots", "blocks"),
          drop = TRUE, ...)
# S3 method for Plots
getStrata(object, drop = TRUE, ...)
# S3 method for how
getType(object, which = c("plots", "within"), ...)
# S3 method for Plots
getType(object, ...)
# S3 method for Within
getType(object, ...)
# S3 method for how
getWithin(object, ...)
# S3 method for allPerms
getControl(object, ...)

Arguments

object

An R object to dispatch on.

which

character; which level of restriction to extract information for.

drop

logical; should un-used factor levels be dropped?

…

Arguments passed on to other methods.

Value

These are simple extractor functions and return the contents of the corresponding components of object.

Details

These are extractor functions for working with permutation design objects created by how. They should be used in preference to directly subsetting the permutation design in case the internal structure of object changes as permute is developed.

getHow is an alias for getControl; specific methods are implemented for getControl if you are debugging.

Examples

Run this code

# NOT RUN {
## extract components from a "how" object
hh <- how()
getWithin(hh)
getNperm(hh)
# }