impute_nas_median: Impute missing values with median

In specmine: Metabolomics and Spectral Data Analysis and Mining

Impute missing values with median

Description

Replace missing values in each variable by the median of the observed values for that variable.

Usage

impute_nas_median(dataset)

Arguments

dataset

A dataset object to modify.

Value

A dataset object with the same structure as the input, where missing values in 'dataset$data' have been replaced by the median of the corresponding variable calculated with 'na.rm = TRUE'.

Examples

data <- matrix(
  c(1, NA, 5, 4),
  nrow = 2,
  dimnames = list(c("x1", "x2"), c("s1", "s2"))
)
dataset <- list(data = data)
impute_nas_median(dataset)

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