I think the problem is that you are using Text::NSP::Measures::2D::CHI
as your measure, when in fact this is more of a superclass used by a number of different measures. The measures that belong to the CHI family are phi, tscore, x2, so if you were hoping to get the chi-squared measure, I think you would want to use Text::NSP::Measures::2D::CHI::x2 instead... You can see the different measures available here.... http://search.cpan.org/dist/Text-NSP/ Finally, note that rather than using the full name of the measure module, you can use a shorthand version of that too, as in statistic.pl x2 output input This is exactly the same as the expanded form, but might be a bit more convenient. Hope this helps! Ted --- In ngram@yahoogroups.com, "umitmersinli" <umit@...> wrote: > > Here is the error I get while trying to execute statistic.pl > Any suggestions? > > perl.exe statistic.pl --ngram 2 Text::NSP::Measures::2D::CHI 3m.CHI.txt > 3m.count ; > > Error from statistic library! > Error code: 101 > Error message: Error calculateStatistic() - Mandatory function > calculateStatistic() not defined. > Your implementation should override this method. Aborting.... > > Best wishes > > Umit >
