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.