nltk.tree.ImmutableParentedTree

Inherited from ImmutableTree:

Method	__delitem__	Undocumented
Method	__delslice__	Undocumented
Method	__hash__	Undocumented
Method	__iadd__	Undocumented
Method	__imul__	Undocumented
Method	__init__	Undocumented
Method	__setitem__	Undocumented
Method	__setslice__	Undocumented
Method	append	Undocumented
Method	extend	Undocumented
Method	pop	Undocumented
Method	remove	Undocumented
Method	reverse	Undocumented
Method	set_label	Set the node label. This will only succeed the first time the node label is set, which should occur in ImmutableTree.__init__().
Method	sort	Undocumented
Instance Variable	_hash	Undocumented
Instance Variable	_label	Undocumented

Inherited from ParentedTree (via ImmutableTree):

Method	left_sibling	The left sibling of this tree, or None if it has none.
Method	parent	The parent of this tree, or None if it has no parent.
Method	parent_index	The index of this tree in its parent. I.e., ptree.parent()[ptree.parent_index()] is ptree. Note that ptree.parent_index() is not necessarily equal to ptree.parent.index(ptree), since the index() method returns the first child that is equal to its argument.
Method	right_sibling	The right sibling of this tree, or None if it has none.
Method	root	The root of this tree. I.e., the unique ancestor of this tree whose parent is None. If ptree.parent() is None, then ptree is its own root.
Method	treeposition	The tree position of this tree, relative to the root of the tree. I.e., ptree.root[ptree.treeposition] is ptree.
Method	_delparent	Update the parent pointer of child to not point to self. This method is only called if the type of child is Tree; i.e., it is not called when removing a leaf from a tree. This method is always called before the child is actually removed from the child list of ...
Method	_frozen_class	Undocumented
Method	_setparent	Update the parent pointer of child to point to self. This method is only called if the type of child is Tree; i.e., it is not called when adding a leaf to a tree. This method is always called before the child is actually added to the child list of ...
Instance Variable	_parent	The parent of this Tree, or None if it has no parent.

Inherited from AbstractParentedTree (via ImmutableTree, ParentedTree):

Method	__getslice__	Undocumented
Method	insert	Undocumented

Inherited from Tree (via ImmutableTree, ParentedTree, AbstractParentedTree):

Class Method	convert	Convert a tree between different subtypes of Tree. cls determines which class will be used to encode the new tree.
Class Method	fromlist	Convert nested lists to a NLTK Tree
Class Method	fromstring	Read a bracketed tree string and return the resulting tree. Trees are represented as nested brackettings, such as:
Method	__add__	Undocumented
Method	__copy__	Undocumented
Method	__deepcopy__	Undocumented
Method	__eq__	Undocumented
Method	__getitem__	Undocumented
Method	__lt__	Undocumented
Method	__mul__	Undocumented
Method	__radd__	Undocumented
Method	__repr__	Undocumented
Method	__rmul__	Undocumented
Method	__str__	Undocumented
Method	chomsky_normal_form	This method can modify a tree in three ways:
Method	collapse_unary	Collapse subtrees with a single child (ie. unary productions) into a new non-terminal (Tree node) joined by 'joinChar'. This is useful when working with algorithms that do not allow unary productions, and completely removing the unary productions would require loss of useful information...
Method	copy	Undocumented
Method	draw	Open a new window containing a graphical diagram of this tree.
Method	flatten	Return a flat version of the tree, with all non-root non-terminals removed.
Method	freeze	Undocumented
Method	height	Return the height of the tree.
Method	label	Return the node label of the tree.
Method	leaf_treeposition	No summary
Method	leaves	Return the leaves of the tree.
Method	pformat	No summary
Method	pformat_latex_qtree	Returns a representation of the tree compatible with the LaTeX qtree package. This consists of the string \Tree followed by the tree represented in bracketed notation.
Method	pos	Return a sequence of pos-tagged words extracted from the tree.
Method	pprint	Print a string representation of this Tree to 'stream'
Method	pretty_print	Pretty-print this tree as ASCII or Unicode art. For explanation of the arguments, see the documentation for nltk.treeprettyprinter.TreePrettyPrinter.
Method	productions	Generate the productions that correspond to the non-terminal nodes of the tree. For each subtree of the form (P: C1 C2 ... Cn) this produces a production of the form P -> C1 C2 ... Cn.
Method	subtrees	Generate all the subtrees of this tree, optionally restricted to trees matching the filter function.
Method	treeposition_spanning_leaves	No summary
Method	treepositions	No summary
Method	un_chomsky_normal_form	This method modifies the tree in three ways:
Class Variable	__ge__	Undocumented
Class Variable	__gt__	Undocumented
Class Variable	__le__	Undocumented
Class Variable	__ne__	Undocumented
Class Variable	node	Undocumented
Class Method	_parse_error	Display a friendly error message when parsing a tree string fails. :param s: The string we're parsing. :param match: regexp match of the problem token. :param expecting: what we expected to see instead.
Method	_get_node	Outdated method to access the node value; use the label() method instead.
Method	_pformat_flat	Undocumented
Method	_repr_png_	Draws and outputs in PNG for ipython. PNG is used instead of PDF, since it can be displayed in the qt console and has wider browser support.
Method	_set_node	Outdated method to set the node value; use the set_label() method instead.