SSallometric            Self-starting version of the allometric
                        function y = a x^b.
generate.log.vols       Generates log volumes given a dataframe that
                        contains stem measurements.
gutten                  von Guttenberg's Norway spruce (Picea abies
                        [L.] Karst) tree measurement data.
herbdata                Herbicide trial seedling data
ht.fvs.ni.m             Predicts height (m) from diameter (cm) by
                        species, using functions from Wykoff et al.
                        (1982).
leuschner               Leuschner harvest schedule yield data
show.cols.with.na       Identifies variables in a dataframe that have
                        missing values, along with a count.
sp.sums.2               Generates species summaries from a dataframe
                        that contains stem measurements.
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).
