Rule Builder > Decision Tables and Trees > Converting Decision Tables and Decision Trees > Switching Between Tables and Trees |
Switching Between Tables and Trees |
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To convert a decision tree to decision table:
The view created is obtained by converting the decision tree model to a decision table model using all the existing tests, and minimizing as much as possible the number of columns, (condition definitions and action definitions). This conversion takes place when you click the button and each time the original definition is changed. Note that some actions may be reordered during the conversion. The created view is read-only. You can modify it only after the decision tree has been permanently converted to a decision table.
To permanently convert the decision table:
When this operation is complete, the decision tree can now be edited and saved. From this point on, you cannot go back to the original decision tree representation because the conversion process modifies the model. Note that in the case of a very asymmetrical tree, the resulting table may be quite large with too many columns and empty cells to be really usable.
If required, you can convert the newly created decision table back into a decision tree.
To switch back to decision tree view:
Converting a large table into a decision tree could create a very big tree that consumes a lot of memory and time during the conversion. By default decision tables with over a 100 rows are not converted into a decision tree.
You can modify this limit in the Decision Table plug-in properties file, by modifying the property:
Empty rows are removed and disabled actions are not taken into account.
Decision Tree Operations | Decision Table Operations | Decision Table or Decision Tree?
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