These are chat archives for thunder-project/thunder

11th
Jun 2015
Daniel Goodwin
@dgoodwin208
Jun 11 2015 18:30
Is there a best practice for accessing submatrices inside an RDD? I'm implementing a bi-cross validation system for NMF, but it requires blocks inside the main matrix. My current approach is using 'selectByIndex' on the main data, then specifying columns via indices in the map() operations. All ears if there is a more elegant way to do this