JuliaStats/DataFrames.jl — pull request #414 by kmsquire (2013-11-14 08:20:26+00:00)
Title: Added RefArray import; fixes https://github.com/JuliaStats/DataArrays.jl/pull/13

RefArray is only meant to be used internally for PooledDataArray construction, to distinguish an array of pool indices from an array of integers; a different mechanism should probably be implemented.