phyloseq: sample_variables – R documentation

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sample_variables

Get the sample variables present in sample_data

Description

This is a simple accessor function to make it more convenient to determine the sample variable names of a particular phyloseq-class object.

Usage

sample_variables(physeq, errorIfNULL=TRUE)

Arguments

`physeq`	(Required). `sample_data-class`, or `phyloseq-class`.
`errorIfNULL`	(Optional). Logical. Should the accessor stop with an error if the slot is empty (`NULL`)? Default `TRUE`.

Value

Character vector. The names of the variables in the sample_data data.frame. Essentially the column names. Useful for selecting model and graphics parameters that interact with sample_data.

Examples

data(enterotype)
sample_variables(enterotype)

phyloseq

Handling and analysis of high-throughput microbiome census data

v1.34.0

AGPL-3

Authors

Paul J. McMurdie <joey711@gmail.com>, Susan Holmes <susan@stat.stanford.edu>, with contributions from Gregory Jordan and Scott Chamberlain

Initial release

2019-04-23