DEFAULT_TREE_COLUMNS    Names of the FIADB TREE columns used by default
                        in 'FIAstemmap'
calc_crown_overlay      Compute fractional tree canopy cover of a
                        subplot/microplot by crown overlay
calc_crwidth            Predict individual tree crown width using
                        species-specific equations
calc_ht_metrics         Calculate stand height metrics from tree list
                        data
calc_tcc_metrics        Predict plot-level canopy cover from individual
                        tree measurements
convert_units           Convenience functions for common unit
                        conversions
cw_coef                 Regression coefficients for predicting tree
                        crown width
cw_sapling_adj          Sapling crown width adjustment factors
load_tree_data          Load tree data from a file or database
                        connection
plantation              Tree list for a pine plantation
plot_crowns             Display modeled tree crowns projected
                        vertically on subplot boundaries
process_tree_data       Generate plot-level stand structure metrics for
                        a tree dataset
spatstat_helpers        Analyze the spatial pattern of trees on an FIA
                        plot
western_redcedar        Tree list for a western redcedar forest
