remove_unknown_columns: Remove columns that only have one specific value

In ume: Ultrahigh-Resolution Mass Spectrometry Data Evaluation for Complex Organic Matter

Remove columns that only have one specific value

Description

This function removes columns that exclusively contain the value defined in 'search_term' (such as " unknown" (default)).

Usage

remove_unknown_columns(df, excl_cols = NULL, search_term = " unknown", ...)

Arguments

df	data.table that contains empty columns
excl_cols	List of column names that should not be removed, even if all values contain search_term
search_term	String that uniquely occurs in one column
...	Additional arguments passed to methods.

See Also

Other Clean data output: remove_id_columns()

ume documentation built on Dec. 13, 2025, 1:06 a.m.