Re: Does Mahout handle missing values in train and test data, for Decision Forest?

2014-04-22 Thread Sean Owen
>From looking at the code recently, no it is not handled. On Tue, Apr 22, 2014 at 1:27 PM, Himanshu wrote: > In Weka it is possible to mark the field with a question mark "?" for unknown > values and these are handled. Is there a similar way to mark > "unknown"/"missing" field values in Mahout tr

Does Mahout handle missing values in train and test data, for Decision Forest?

2014-04-22 Thread Himanshu
In Weka it is possible to mark the field with a question mark "?" for unknown values and these are handled. Is there a similar way to mark "unknown"/"missing" field values in Mahout training and test data as well. Appreciate any suggestions/pointers. Breiman talks about two ways to handle missi