group_subset function

methods

Group-based Subset

group_subset(object, ...)

## S4 method for signature 'GroupedComposition'
group_subset(object, which)

## S4 method for signature 'GroupedLogRatio'
group_subset(object, which)

Arguments

• object: A GroupedComposition object.
• ...: Currently not used.
• which: A character vector specifying the groups of object to extract.

Returns

A CompositionMatrix object.

Examples

## Data from Aitchison 1986
data("slides")

## Coerce to compositional data
coda <- as_composition(slides, groups = 2)

## Grouping metadata
group_levels(coda)

group_names(coda)

group_indices(coda)

group_rows(coda)

group_length(coda)

group_size(coda)

See Also

Other grouping methods: group(), group_metadata, group_split()

Author(s)

N. Frerebeau