nltk.parse.earleychart.FeatureIncrementalChart

type FeatureIncrementalChart

select(self, end, **restrictions)

source code

Returns an iterator over the edges in this chart. See Chart.select for more information about the restrictions on the edges.

Parameters:

span - Only generate edges e where e.span()==span
start - Only generate edges e where e.start()==start
end - Only generate edges e where e.end()==end
length - Only generate edges e where e.length()==length
lhs - Only generate edges e where e.lhs()==lhs
rhs - Only generate edges e where e.rhs()==rhs
next - Only generate edges e where e.next()==next
dot - Only generate edges e where e.dot()==dot
is_complete - Only generate edges e where e.is_complete()==is_complete
is_incomplete - Only generate edges e where e.is_incomplete()==is_incomplete

Returns: iter of EdgeI

An iterator over the edges in this chart. Any new edges that are added to the chart before the iterator is exahusted will also be generated. restrictions can be used to restrict the set of edges that will be generated.

Overrides: chart.Chart.select

(inherited documentation)

_add_index(self, restr_keys)

source code

A helper function for select, which creates a new index for a given set of attributes (aka restriction keys).

Overrides: chart.Chart._add_index: (inherited documentation)

_register_with_indexes(self, edge)

source code

A helper function for insert, which registers the new edge with all existing indexes.

Overrides: chart.Chart._register_with_indexes: (inherited documentation)