Clarify comments, fix accessors.
Clarify comments, fix accessors.

ranjan1990/mlpack,erubboli/mlpack,minhpqn/mlpack,palashahuja/mlpack,stereomatchingkiss/mlpack,bmswgnp/mlpack,BookChan/mlpack,lezorich/mlpack,datachand/mlpack,ranjan1990/mlpack,erubboli/mlpack,datachand/mlpack,BookChan/mlpack,theranger/mlpack,Azizou/mlpack,ajjl/mlpack,darcyliu/mlpack,bmswgnp/mlpack,trungda/mlpack,darcyliu/mlpack,bmswgnp/mlpack,Azizou/mlpack,datachand/mlpack,chenmoshushi/mlpack,BookChan/mlpack,palashahuja/mlpack,lezorich/mlpack,thirdwing/mlpack,ajjl/mlpack,trungda/mlpack,ersanliqiao/mlpack,chenmoshushi/mlpack,darcyliu/mlpack,erubboli/mlpack,chenmoshushi/mlpack,ersanliqiao/mlpack,thirdwing/mlpack,ersanliqiao/mlpack,minhpqn/mlpack,ajjl/mlpack,stereomatchingkiss/mlpack,theranger/mlpack,theranger/mlpack,trungda/mlpack,ranjan1990/mlpack,palashahuja/mlpack,lezorich/mlpack,minhpqn/mlpack,thirdwing/mlpack,Azizou/mlpack,stereomatchingkiss/mlpack