[R] Accessing DF index

[David Winsemius]

On Feb 19, 2011, at 5:25 PM, eric wrote:

>
> So how would I convert those row names to dates and give that column  
> the name
> "Date" so that I can use subset and other functions on the Date  
> column ?

You could have used subset without the new column:

 > subset(x2, rownames(x2) < "2000-11-30")
                  FAIRX        SP500        delta      dtcol
2000-08-31  0.01010110  0.007426964  0.002674132 2000-08-31
2000-09-29  0.09667973 -0.054966292  0.151646023 2000-09-29
2000-10-31 -0.00824558 -0.004961785 -0.003283795 2000-10-31

> -- 


David Winsemius, MD
West Hartford, CT