MattNapsAlot/bigDataFrame — Issue #23: square bracket accessor exception when exceeding dims of data frame
Author: MattNapsAlot
Created: 2012-01-02 05:31:50+00:00
State: open

Modify the method to behave like a data frame:

```R
> dd <- data.frame(diag(3))
> dd[4,]
X1 X2 X3
NA NA NA NA
> x <- BigDataFrame(data=dd)
> x[4,]
Error in HDF5Execute("readdata", filename = filename, path = path, intdata = integer(), :
HDF5Dataset::ReadData() Starting row index exceeds the number of rows in the dataset.

```