Package teamwork :: Package math :: Module KeyedTree :: Class KeyedTree

Class KeyedTree

matrices.DecisionTree --+
                        |
                       KeyedTree

Known Subclasses:

ProbabilityTree.ProbabilityTree

A DecisionTree that requires KeyedPlane branches.

Nested Classes

[hide private]

planeClass
the class used to instantiate the branches

Instance Methods

[hide private]

fill(self, keys, value=0.0)
Fills in any missing slots with a default value

source code

dict:Key→boolean

_keys(self)
Helper method for keys

source code

freeze(self)
Locks in the dimensions and keys of all leaves

source code

unfreeze(self)
Unlocks the dimensions and keys of all leaves

source code

str

simpleText(self, printLeaves=True, numbers=True, all=False)
Returns a more readable string version of this tree

source code

updateKeys(self)
Updates the record of contained keys in self.keys source code

instantiate(self, table)

source code

instantiateKeys(self, table)
Replaces any key references by the values in the table

source code

_instantiate(self, table)

source code

_multiply(self, other, comparisons=None, conditions=[]) source code

scale(self, factor)
Scales all of the leaf nodes by the given float factor

source code

getKeys(self)
Returns: a list of any keys used by at least one branch in this tree

source code

str

toNumeric(self)
Returns: a string representation of the internal array representation

source code

int

pruneIdentities(self)
Replaces any identity matrices at the leaves of this tree with the number 1.

source code

__getitem__(self, index)

source code

Inherited from matrices.DecisionTree: __add__, __copy__, __eq__, __hash__, __init__, __mul__, __neg__, __str__, __sub__, __xml__, branch, branches, children, count, createIndex, depth, fromRules, generateAlternatives, getPath, getValue, isLeaf, leafNodes, leaves, makeLeaf, makeRules, merge, parse, prune, rebalance, removeTautologies, replace

Inherited from matrices.DecisionTree (private): _extractTree, _merge

Class Variables

[hide private]

Inherited from matrices.DecisionTree: checkPrune, checkTautology

Instance Variables

[hide private]

Key[]

keys(self)
the cumulative list of keys used by all of the branches below

source code

Method Details

[hide private]

fill(self, keys, value=0.0)

source code

Fills in any missing slots with a default value

Parameters:

keys (list of Key instances) - the slots that should be filled
value - the default value (defaults to 0)

Note: does not overwrite existing values

_keys(self)

source code

Helper method for keys

Returns: dict:Key→boolean: all keys used in this tree and all subtrees and leaves

simpleText(self, printLeaves=True, numbers=True, all=False)

source code

Returns a more readable string version of this tree

Parameters:

printLeaves (boolean) - optional flag indicating whether the leaves should also be converted into a user-friendly string
numbers (boolean) - if True, floats are used to represent the threshold; otherwise, an automatically generated English representation (defaults to False)

Returns: str