
<option name=collocation.evalfunc type=Class>
<label>Collocation Evaluation Function</label>
<description>
The evaluation function is used to calculate a significance score
for each potential collocate.  The following options are available:
<dl>
<dt> observed/expected
<dd> the ratio between the observed number of occurrences and
	the expected one
<dt> mutual information
<dd> the `classic' formula, used by Church <i>et al</i>
<dt> double weighted mutual information
<dd> a variation of mutual information which emphasises higher
	frequency (ie more common) words
<dt> triple weighted mutual information
<dd> a variation of mutual information which emphasises higher
	frequency (ie more common) words
<dt> t-score
<dd> a statistic based on the t-test
<dt> z-score
<dd> a similar statistic
<dt> log likelihood
<dd> described by Dunning (1993)
<dt> modified log likelihood
<dd> described by Kilgarriff (1997)
</dl>
</description>
<value name="mutual information">uk.ac.bham.clg.cue.corpus.statistics.MutualInformation</value>
<value name="mi (double)">uk.ac.bham.clg.cue.corpus.statistics.MutualInformation2</value>
<value name="mi (triple)">uk.ac.bham.clg.cue.corpus.statistics.MutualInformation3</value>
<value name="t-score">uk.ac.bham.clg.cue.corpus.statistics.Tscore</value>
<value name="z-score">uk.ac.bham.clg.cue.corpus.statistics.Zscore</value>
<value name="observed/expected">uk.ac.bham.clg.cue.corpus.statistics.ObservedExpected2</value>
<value name="log likelihood">uk.ac.bham.clg.cue.corpus.statistics.LogLikelihood</value>
<value name="mod. log likelihood">uk.ac.bham.clg.cue.corpus.statistics.NewLogLikelihood</value>
</option>

<option name=collocation.span.left type=Integer>
<label>Left Span</label>
<description>
The left span (width of the environment used for collocation collection)
</description>
<value name="left span">4</value>
</option>

<option name=collocation.span.right type=Integer>
<label>Right Span</label>
<description>
The right span (width of the environment used for collocation collection)
</description>
<value name="right span">4</value>
</option>

<option name=collocation.cutoff type=Integer>
<label>Cut-Off</label>
<description>
The cut-off point.  All words with a frequency up to this value will be 
ignored.
</description>
<value name="cut-off">1</value>
</option>

<option name=collocation.casefold type=Boolean>
<label>Case Fold</label>
<description>
If set, differences between upper and lower case will be ignored.
</description>
<value name="case-fold">false</value>
</option>

<option name=collocation.direction type=Boolean>
<label>Direction</label>
<description>
If set, a distinction is made between a word's occurrences on the left hand
side of the node word and of the right hand side.
</description>
<value name="direction">false</value>
</option>
