Low Variance Filter

Manipulator

Filters out double-compatible columns, whose variance is below a user defined threshold. Columns with low variance are likely to distract certain learning algorithms (in particular those which are distance based) and are therefore better removed.

Note, the input table should not be normalized with a Gaussian normalization or any other normalization technique which changes the variances of the input.

Input Ports

  1. Type: Data Numeric input data. (Non-numeric columns will be left untouched.)

Output Ports

  1. Type: Data Filtered data.

Find here

Analytics > Mining > Feature Selection

Make sure to have this extension installed:

KNIME Core

Update site for KNIME Analytics Platform 3.7:
KNIME Analytics Platform 3.7 Update Site

How to install extensions