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Missing Value Column Filter

KNIME Base Nodes version 4.0.1.v201908131444 by KNIME AG, Zurich, Switzerland

This node removes all columns from the input table which contain more missing values than a certain percentage. The filtering is only applied to the columns in the input list of the column filter panel.

Options

Manual Selection

Include
This list contains the names of those columns in the input table to be included in the output table.
Exclude
This list contains the names of those columns in the input table to be excluded from the output table.
Filter
Use one of these fields to filter either the Include or Exclude list for certain column names or name substrings.
Buttons
Use these buttons to move columns between the Include and Exclude list. Single-arrow buttons will move all selected columns. Double-arrow buttons will move all columns (filtering is taken into account).
Enforce Exclusion
Select this option to enforce the current exclusion list to stay the same even if the input table specification changes. If some of the excluded columns are not available anymore, a warning is displayed. (New columns will automatically be added to the inclusion list.)
Enforce Inclusion
Select this option to enforce the current inclusion list to stay the same even if the input table specification changes. If some of the included columns are not available anymore, a warning is displayed. (New columns will automatically be added to the exclusion list.)

Wildcard/Regex Selection

Type a search pattern which matches columns to move into the Include list. You can use either Wildcards ('?' matching any character, '*' matching a sequence of any characters) or Regex. You can specify whether your pattern should be case sensitive.

Type Selection

Select the column types that you want to include. Column types that are currently not present are depicted in italic.
Missing value threshold
All selected columns with at least this percentage of missing values are filtered out.

Input Ports

Table from which columns are filtered.

Output Ports

Table without selected columns containing more or as many of missing values than the set percentage.

Best Friends (Incoming)

Best Friends (Outgoing)

Workflows

Installation

To use this node in KNIME, install KNIME Core from the following update site:

KNIME 4.0
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