Number Filter

Filters all terms contained in the input documents that consist of digits, including decimal separators "," or "." and possible leading "+" or "-". There is also an option to filter all terms that contain at least one digit.

Options

Preprocessing options

Document column: The column containing the documents to preprocess.
Replace documents: If checked, the documents will be replaced by the new preprocessed documents. Otherwise the preprocessed documents will be appended as new column.
Append column: The name of the new appended column, containing the preprocessed documents.
Ignore unmodifiable tag: If checked, unmodifiable terms will be preprocessed too.

Filter options

Filter terms representing numbers: If checked, terms that consist of numbers, decimal seperators and leading +- characters will be filtered.
Filter terms containing numbers: If checked, terms that contain at least one digit (e.g. abc1) will be filtered.

Input Ports

: The input table which contains the documents to preprocess.

Output Ports

: The output table which contains the preprocessed documents.

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Installation

To use this node in KNIME, install the extension KNIME Textprocessing from the below update site following our NodePit Product and Node Installation Guide:

v5.9

A zipped version of the software site can be downloaded here.

Plugin provider: KNIME AG, Zurich, Switzerland

Plugin version: 5.9.0.v202511181600

On NodePit since: 2025-12-11

Last update: 2026-01-10

Tags: Streamable

KNIME versions: Since v3.6

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