[R] Creating tables with std errors beneath estimates

[Brian Quinif]

I have recently become familiar with the latex() function thanks to
the help of many people on this list.  However, now I need to figure
out how to make the right dataframe for the tables I want to make.

What I need to do is make tables with the std. errors beneath the
estimates in parentheses (standard econ style).  How can I make a
dataframe with that format?

Thanks,

Brian