EdgeFrame add_edges

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add_edges(self, source_frame, column_name_for_source_vertex_id, column_name_for_dest_vertex_id, column_names=None, create_missing_vertices=False)

Add edges to a graph.

Parameters:

source_frame : <bound method AtkEntityType.__name__ of <trustedanalytics.rest.jsonschema.AtkEntityType object at 0x7f9e686f3fd0>>

Frame that will be the source of the edge data.

column_name_for_source_vertex_id : unicode

column name for a unique id for each source vertex (this is not the system defined _vid).

column_name_for_dest_vertex_id : unicode

column name for a unique id for each destination vertex (this is not the system defined _vid).

column_names : list (default=None)

Column names to be used as properties for each vertex, None means use all columns, empty list means use none.

create_missing_vertices : bool (default=False)

True to create missing vertices for edge (slightly slower), False to drop edges pointing to missing vertices. Defaults to False.

Returns:

: _Unit

Includes appending to a list of existing edges.

Examples

Create a frame and add edges:

>>> graph = ta.Graph()
>>> graph.define_vertex_type('users')
>>> graph.define_vertex_type('movie')
>>> graph.define_edge_type('ratings', 'users', 'movies', directed=True)
>>> graph.add_edges(frame, 'user_id', 'movie_id', ['rating'], create_missing_vertices=True)