Column Splitter

This node splits the columns of the input table into two output tables. Specify in the dialog which columns should occur in the top table (left list), and the bottom table (right list). Use the buttons to move columns from one list to the other.

Options

Manual Selection

Top

This list contains the names of those columns in the input table to be included in the top output table.

Bottom

This list contains the names of those columns in the input table to be included in the bottom 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 (Top)

Select this option to enforce the current top 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 bottom list.)

Enforce Inclusion (Bottom)

Select this option to enforce the current exclusion list to stay the same even if the input table specification changes. If some of the bottom columns are not available anymore, a warning is displayed. (New columns will automatically be added to the Top list.)

Wildcard/Regex Selection

Type a search pattern which matches columns to move into the Include or Exclude list. Which list is used can be specified. 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.

Views

This node has no views

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Links

• KNIME E-Learning Course: Column Filter

  www.knime.com/knime-introductory-course/chapter3/section1/column-filter
• Java API documentation about regex patterns

  http://download.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html
• Java API documentation about regex matching

  http://download.oracle.com/javase/6/docs/api/java/util/regex/Matcher.html
• how check the data type in file reader and add the odd one to new columnby gab1one on 2018-12-12

  forum.knime.com/p/51321
• Simple Loopby gab1one on 2018-03-05

  forum.knime.com/p/39233
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Developers