bug fix in rows(); now handles 0 rows
working toward simultaneous addition of multiple functions to a plot.

issue: factors getting converted to numeric...
aggregation meta functions -- needs work, documentation
moved old aggregating.R into sandbox
moved misplaced examples
renamed (non-aggregating) favstats to fav_stats
loading methods and utils as per roxygen2 bug
moved OLI data into sandbox
working on aggregating
finally checking in stuff from Smith era work
put manipulate code into \dontrun{}
typo fixes; faial gracefully with add + 2d plot (for now)
add data= into mean( age ~ sex )
remove debugging stuff
removed deprecated .First.lib()
cleaning up handling case when mean.default warns
adding data=
change file name from TukeyHSD to TukeyHSD.lm
add alias for tally,formula-method
added SD to globalVariables