Decision Tree modifying actions¶
Actions modifying decision tree can be performed by request dtree_set.
There are 4 types of modifying actions:
"DTREE","INSTR","POINT"and"ATOM"
For all types of actions format of data is list, and first element of list is type of action.
DTREE modifying actions¶
These actions operates with whole decision tree as Solution items in work.
Format¶
["DTREE""UPDATE" option, optional string]Actions:¶
UPDATE: update (as well as create) decision tree with given name
Notes:
if position [3] is omited, no change of rubric is expected on update)
decision tree creation can be blocked if there exists another solution item with the same name, see details here.
DELETE: delete decision tree with given name
INSTR modifying actions¶
Actions of this type manipulates with logical blocks of decision tree code. Blocks are identified by index of first point.
For each point list of available actions is prepared in actions property of Decision Tree Point descriptor.
Format¶
["INSTR"]Actions:¶
actions for blocks of
"If"type:JOIN-AND, JOIN-OR: join If-block with If block above with AND or OR operation
SPLIT: split If block onto series of separate blocks by AND or OR operation
NEGATE: negate condition in If-block
DUPLICATE: duplicate logical block
action for blocks of
"Return"type:BOOL-TRUE, BOOL-FALSE: change decision for return operator
action for any block:
DELETE: delete logical block
LABEL: set/drop label, not yet implemented
COMMENTS: edit comments to block, not yet implemented
POINT modifying actions¶
Actions of this type are caused by insertion of new condition over filtering property into some point of decision tree.
Format¶
["POINT"]Actions:¶
INSERT: insert condition as a new point into decision tree
REPLACE: replace the whole condition of If-block by new condition
JOIN-AND, JOIN-OR: join new condition with current condition of If-block by AND or OR operation
UP-JOIN_AND, UP-JOIN-OR, UP-REPLACE: these variants of instructions refer to internal point of If-block, but affect upper If-point
ATOM modifying actions¶
Actions of this type are caused by user requests for modification of existing atom conditions in decision tree.
Format¶
["ATOM"[ list]]Actions:¶
EDIT: modify atomic condition, additional argument in place [3] is new Condition descriptor
DELETE: delete atom from the whole condition and simplify it, no additional argument requires
Note: in case of one atom in point, please use action
"INSTR"/"DELETE"instead of this one.