[datatable-help] Join and sum not compatible matrices through data.table

leodido leodidonato at gmail.com
Tue Nov 27 04:29:42 CET 2012


To me too, Matthew.

However, I'll benchmark Aaron solution against MadScone solution (achieved
through reshape package).

In the meanwhile I continue to investigate a way to implement this solution
for data.table matrices.

Bye,



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