groups {nexus}

Working With Groups

Description

Retrieves or defines the groups to which the observations belong.

Usage

any_assigned(x)

is_assigned(x)

get_groups(x)

set_groups(x) <- value

## S4 method for signature 'CompositionMatrix'
is_assigned(x)

## S4 method for signature 'LogRatio'
is_assigned(x)

## S4 method for signature 'OutlierIndex'
is_assigned(x)

## S4 method for signature 'CompositionMatrix'
any_assigned(x)

## S4 method for signature 'LogRatio'
any_assigned(x)

## S4 method for signature 'OutlierIndex'
any_assigned(x)

## S4 method for signature 'CompositionMatrix'
get_groups(x)

## S4 method for signature 'LogRatio'
get_groups(x)

## S4 method for signature 'OutlierIndex'
get_groups(x)

## S4 replacement method for signature 'CompositionMatrix'
set_groups(x) <- value

Arguments

x

An object from which to get or set groups.

value

A possible value for the groups of x.

Details

See vignette("nexus").

Value

• set_groups() returns an object of the same sort as x with the new group names assigned.

• get_groups() returns a character vector giving the group names of x.

• any_assigned() returns a logical scalar specifying whether or not x has groups.

• is_assigned() returns a logical vector specifying whether or not an observation belongs to a group.

Author(s)

N. Frerebeau

See Also

Other mutators: identifiers, samples, split(), subset(), totals