Missing Value Column Filter

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.

Dialog Options

Include
This list contains the column names which are filtered.
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.)
Select
Use these buttons to move columns between the Include and Exclude list.
Search
Use one of these fields to search either within the Include or Exclude list for certain column names or name substrings. Repeated clicking of the search button marks the next column that matches the search text. The check box 'Mark all search hits' causes all matching columns to be selected making them movable between the two lists.
Exclude
This list contains the column names of the input table which will be passed to the output table without applying the missing value filter.
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.)
Missing value threshold
All selected columns with at least this percentage of missing values are filtered out.

Ports

Input Ports
0 Table from which columns are filtered.
Output Ports
0 Table without selected columns containing more or as many of missing values than the set percentage.
This node is contained in KNIME Base Nodes provided by KNIME GmbH, Konstanz, Germany.