TODO list for the nlcv package

- probe2gene optie toevoegen

- rename bagg into bagging
- write gbm interface

- progress bar
- silence pamr messages

topCombinations(n = )
- hoeveel komen A en B samen voor in de top n over
  alle runs heen (kan worden voorgesteld als een contingency table)
  --> potentiëel probleem: twee maal 3 gecorreleerde genen 
  A, B, C en K, L, M: AB=AK=CM=...

- have a look at balKfold.xvspec generate a partition function for
     cross-validation, where the partitions are
     approximately balanced with respect to the
     distribution of a response variable
     as a possible replacement for the current partitioning methods

- add switch on classify_bioc_2.2 / 2.3 function based on version
  number of the MLInterfaces package

- fix problem when number of runs == 1 (maybe impose that it be >= 2)
