.. _fwflag_topic_lex_method:
====================
--topic_lex_method
====================
Switch
======

--topic_lex_method METHOD

Description
===========

Method used to build a topic lexicon from a topic file via :doc:`fwflag_add_topiclex_from_topicfile`.

Argument and Default Value
==========================

Must be one of ``"csv_lik"`` or ``"standard"``. Default: ``"csv_lik"`` (``dlac.DEF_TOPIC_LEX_METHOD``).

Details
=======

Passed straight through to ``FeatureExtractor.addTopicLexFromTopicFile(topicfile, topiclexicon, topiclexmethod, threshold)``, which branches on this string to pick the topic-file parser. No validation is done on the value itself, so a typo silently falls through to the ``"csv_lik"``-style branch rather than raising an error.

**Note:** :doc:`fwflag_add_topiclex_from_topicfile` (the switch that actually consumes this value) is currently broken for an unrelated reason — see the Known issue on that page — so this switch has no working consumer as of this writing even when supplied correctly.

Other Switches
==============

Required Switches:

* :doc:`fwflag_add_topiclex_from_topicfile`
* :doc:`fwflag_topic_file`
* :doc:`fwflag_topic_lexicon`

Example Commands
================

.. code-block:: bash

	dlatkInterface.py -d dla_tutorial --add_topiclex_from_topicfile --topic_file /path/to/topics.keys \
	--topic_lexicon my_new_topics --topic_lex_method standard