You can get the list of currently supported functions by running some code. See Supported Functions section of https://poi.apache.org/spreadsheet/formula.html
We use bugzilla, and spreadsheet formulas belong to the Common SS module. https://bz.apache.org/bugzilla/describecomponents.cgi?product=POI On Sep 13, 2016 9:31 AM, "Nick Burch" <apa...@gagravarr.org> wrote: > On Tue, 13 Sep 2016, Justin Flowers wrote: > >> OK, it was a sanity issue on my part. Apparently you can get this issue >> if a UDF is not defined. And of course I wrote a Java UDF here that it >> cannot find on its side. The functions I'm implementing already exist in >> Excel, just not yet in POI ("STDEV.P" and "T.TEST"). >> > > Ah. You can't generally use UDFs to implement functions that POI lacks, > generally only for brand new custom functions. See > http://poi.apache.org/spreadsheet/eval-devguide.html for a bit more on > implementing a "missing" function, and also a talk from an old ApacheCon: > http://home.apache.org/~yegor/apachecon_us2010/Evaluation_Of > _Excel_Formulas_In_POI.pptx > > We'd love a patch if you can implement the missing functions! See > http://poi.apache.org/guidelines.html > > Nick > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@poi.apache.org > For additional commands, e-mail: user-h...@poi.apache.org > >
