JuliaStats/DataFrames.jl — pull request #579 by garborg (2014-04-19 21:33:36+00:00)
Title: Consistent setindex! on zero-row DataFrames, and with scalars

`zero_row_df[:col] = scalar` no longer creates column-length inconsistencies.
`df = DataFrame(a=1, b=2); df[9, :b] = 1` now throws an error instead of changing `df[1, :b]`.