subset_metadata: Subset metadata

In specmine: Metabolomics and Spectral Data Analysis and Mining

Subset metadata

Description

Selects metadata variables to keep.

Usage

subset_metadata(dataset, variables)

Arguments

dataset	Dataset to subset.
variables	Metadata variables to keep.

Value

A dataset object with the same structure as the input, where 'dataset$metadata' contains only the selected metadata variables.

Examples

data <- matrix(
  1:6,
  nrow = 2,
  dimnames = list(c("x1", "x2"), c("s1", "s2", "s3"))
)
metadata <- data.frame(
  class = c("A", "B", "A"),
  batch = c(1, 1, 2),
  row.names = c("s1", "s2", "s3")
)
dataset <- list(data = data, metadata = metadata)
subset_metadata(dataset, "class")

specmine documentation built on Aug. 5, 2026, 5:06 p.m.