SSallometric            Self-starting version of the allometric
                        function y = a x^b.
gutten                  von Guttenberg's Norway spruce (Picea abies
                        [L.] Karst) tree measurement data.
ht.fvs.ni.m             Predicts height (m) from diameter (cm) by
                        species, using functions from Wykoff et al.
                        (1982).
show.cols.with.na       Identifies variables in a dataframe that have
                        missing values, along with a count.
stage                   Stage's Grand fir (Abies grandis (Dougl)
                        Lindl.) tree measurement data
sweetgum                Lenhart's sweetgum (Liquidambar styraciflua L.)
                        tree measurement data.
ufc                     Upper Flat Creek forest cruise tree data
vol.fvs.ni.m3           Predicts volume (m^3) from diameter (cm) and
                        height (m) by species, using functions from
                        Wykoff et al. (1982).
