using factors as keys

14 views

bugrmr

Skip to first unread message

Antonio Piccolboni

unread,

Jul 22, 2013, 1:06:57 PM7/22/13

to rha...@googlegroups.com

Hi,

I wanted to bring to everybody's attention bug #58 whereby grouping in the reduce phase can be incomplete (no records lost, but some groups are split). This happens when using factors as keys, which is a very common occurrence when using data frames. The workaround is simple, use characters instead. Different ways to achieve this are discussed in this thread. I am still thinking what the long term solution should be.