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Edit Nominal Probability Distribution

It is used to manipulate the possible values of nominal probability distribution columns. It is possible to interactively insert or remove possible values, as well as resetting the initial configuration. This allows the configuration of the downstream nodes to be applied on the amended probability classes. The sorting of the probability classes is also possible. This might be beneficial in case specific probability classes need to be monitored and this way they can be put first in the list of possible values.

Options

Select column: Selects the probability distribution column which needs to be edited. All the other column types are filtered out. A column name with red border indicates that the column was previously configured but either it doesn't exist anymore or its type has changed (not a probability distribution column anymore). Red written domain values orderings can be edited as others and in addition deleted. (See the Reset/Delete option).
Add: Inserts a new value at the selected position. Newly created values are marked as green.
Remove: Removes all the selected values.
Sort alphabetically [A-Z, Z-A]: Sorts the probability classes in alphabetical order ascending (A-Z) or descending (Z-A).
Move one step [Up, Down]: Moves the selected element(s) one position up or down. If the top or the bottom of the list is reached, the selected element(s) is/are enqueued on the other end of the table again.
Move first/last: Moves the selected element(s) to the top or at the end of the table.
Reset/Delete: Restores the original probability distribution classes as in the input table. If a not existing, but previously configured column is selected (written in red), this buttons is marked with 'Delete' and deletes the stored configuration for the selected column.
If a configured column is not present in data: Determines whether the execution should either fail or the column should be ignored if a configured column does not exist in the input table.
If a configured column has an incompatible type: Determines whether the execution should either fail or the column should be ignored if the type of the configured column is not compatible with a probability distribution column.
Precision (number of decimal digits): Defines the precision that the sum of the probabilities must have by restricting the number of decimal digits that must be precise. The sum is accepted if abs(sum - 1) <= 10^(-precision) , e.g., if the sum is 0.999, it is only accepted with a precision of <=2. The lower the specified number, the higher is the tolerance.

Input Ports

: Input data table

Output Ports

: Input data table with changed specification.

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Installation

To use this node in KNIME, install the extension KNIME Base nodes from the below update site following our NodePit Product and Node Installation Guide:

v5.3

A zipped version of the software site can be downloaded here.

Plugin provider: KNIME AG, Zurich, Switzerland

Plugin version: 5.3.0.v202404171720

On NodePit since: 2020-01-18

Last update: 2020-01-24

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