samples {nexus}

Working With Samples

Description

Retrieves or defines the sample names.

Usage

any_replicated(x)

is_replicated(x)

get_samples(x)

set_samples(x) <- value

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

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

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

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

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

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

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

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

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

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

Arguments

x

An object from which to get or set samples.

value

A possible value for the samples of x.

Details

In some situations, measurements may have been repeated (e.g. multiple chemical analyses on the same sample). The presence of repeated measurements can be specified by giving several observations the same sample name.

See vignette("nexus").

Value

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

• get_samples() returns a character vector giving the sample names of x.

• any_replicated() returns a logical scalar specifying whether or not x has replicated observations.

• is_replicated() returns a logical vector specifying whether or not an observation is a replicate.

Author(s)

N. Frerebeau

See Also

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