> df1 = DataFrame(A = c(1,2))
> df2 = DataFrame(B = c(1,2))
> rownames(df1) = c("a", "b")
> df1
DataFrame with 2 rows and 1 column
          A
  <numeric>
a         1
b         2
> cbind(df1, df2)
DataFrame with 2 rows and 2 columns
          A         B
  <numeric> <numeric>
1         1         1
2         2         2

rownames are removed.  This does not happen for data.frame's.

Kasper

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