remove_samples: Remove samples

In specmine: Metabolomics and Spectral Data Analysis and Mining

Remove samples

Description

Removes samples from a dataset.

Usage

remove_samples(dataset, samples.to.remove, rebuild.factors = TRUE)

Arguments

dataset	Dataset to modify.
samples.to.remove	Samples to remove.
rebuild.factors	Logical. If TRUE, rebuild factors in metadata.

Value

A dataset object with the same structure as the input, with the selected samples removed from both 'dataset$data' and 'dataset$metadata'. If 'rebuild.factors' is 'TRUE', unused factor levels in metadata are dropped.

Examples

data <- matrix(
  1:9,
  nrow = 3,
  dimnames = list(c("x1", "x2", "x3"), c("s1", "s2", "s3"))
)
metadata <- data.frame(
  class = factor(c("A", "B", "A")),
  row.names = c("s1", "s2", "s3")
)
dataset <- list(data = data, metadata = metadata)
remove_samples(dataset, "s2")

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