DBgetCSV                Database - Extracts data table(s) from FIA
                        DataMart.
DBgetEvalid             Database - Gets or checks FIA EVALIDs and/or
                        gets inventory years from FIA's online
                        publicly-available DataMart
                        (https://apps.fs.usda.gov/fia/datamart/CSV/datamart_csv.html).
DBgetPlots              Database - Extracts inventory plot data from
                        FIA DataMart.
DBgetSQLite             Database - Queries a SQLite database table.
DBgetStrata             Database - Gets stratification information from
                        FIA database.
DBgetXY                 Database - Extracts plot coordinates.
DBqryCSV                Database - Queries FIA Online Database.
FIESTA-package          FIESTA - Forest Inventory Estimation for
                        Analysis
GDT_NAMES               Reference tables - gdal data types.
WYcond                  FIA data. Condition-level data from FIA public
                        database.
WYp2veg_subp_structure
                        FIA data. P2 vegetation structure data from FIA
                        public database.
WYp2veg_subplot_spp     FIA data. P2 vegetation species data from FIA
                        public database.
WYplt                   FIA data. Plot-level data from FIA public
                        database.
WYpltassgn              FIA data. Plot assignment data from FIA public
                        database.
WYseed                  FIA data. Seedling data from FIA public
                        database.
WYstratalut             FIA data. Post-stratification data from FIA
                        public database.
WYsubp_cond             FIA data. Subplot condition data from FIA
                        public database.
WYsubplot               FIA data. Subplot data from FIA public
                        database.
WYtree                  FIA data. Tree-level data from FIA public
                        database.
WYunitarea              FIA data. Acres data from FIA public database.
WYunitzonal             Zonal data. Zonal means for auxiliary data in
                        counties in Wyoming.
datBarStacked           Data - Generates frequency barplot.
datBarplot              Data - Generates frequency barplot.
datFilter               Data - Filters data table.
datFreq                 Data - Get frequency table for specified
                        variable(s).
datLUTclass             Data - Create a variable with classified
                        values.
datLUTnm                Data - Gets variable description or class.
datLUTspp               Data - Gets variable description or class for
                        SPCD.
datLineplot             Data - Generates line graph.
datPBplotchg            Data - Generates barplot of photo-based change
                        estimates.
datPBpnt2pct            Data - Transpose point data to plot-level
                        percent by domain.
datPivot                Data - Generates a pivot table.
datPlotcnt              Database - Get plot counts.
datSumCond              Data - Aggregates numeric condition data to
                        plot level.
datSumTree              Data - Aggregates numeric tree data to the plot
                        or condition-level.
datSumTreeDom           Data - Aggregates numeric tree data by tree
                        domain (i.e. species) to plot or
                        condition-level.
dbTables                List of population tables.
kindcd3old              Reference table - List of RMRS plots that have
                        fallen out of inventory because they were not
                        found or they were in the wrong place.
modGBarea               Green-Book module - Generate area estimates.
modGBchng               Green-Book module - Generate area estimates.
modGBp2veg              Green-Book module - Generate area estimates.
modGBpop                Green-Book module - Generate population data
                        for GB module.
modGBratio              Green-Book module - Generate ratio estimates.
modGBtree               Green-Book module - Generate tree estimates.
modMAarea               Model-Assisted module - Generate model-assisted
                        area estimates.
modMApop                Model-Assisted module - Generate population
                        data for MA module.
modMAtree               Model-Assisted module - Generate model-assisted
                        tree estimates.
modPB                   Photo-Based module - Generate photo-based
                        estimates.
modPBpop                Photo-Based module - Generate population data
                        for PB module.
modSAarea               Small area module - Generate small area tree
                        estimates.
modSApop                Small area module - Compile population data for
                        SA module.
modSAtree               Small area module - Generate small area tree
                        estimates.
ref_codes               Reference tables - Code definitions.
ref_cond                Reference table - Metadata for cond default
                        variables output from DBgetPlots()
ref_conversion          Reference table - for conversion factors.
ref_diacl2in            Reference table - diameter 2-inch class codes
                        (DIA).
ref_domain              Reference table - for generating tables.
ref_estvar              Reference table - for generating estimates
ref_plt                 Reference table - Metadata for plt default
                        variables output from DBgetPlots()
ref_popType             Reference table - popType codes.
ref_shp                 Reference table - Metadata for shp_* default
                        variables output from DBgetPlots()
ref_species             Reference table - Code definitions.
ref_statecd             Reference table - state codes (STATECD).
ref_titles              Reference table - Variable titles.
ref_tree                Reference table - Metadata for tree default
                        variables output from DBgetPlots()
ref_units               Reference table - for variable units.
spAlignRast             Spatial - Aligns a list of raster layer(s)
                        based on a reference raster.
spClassifyRast          Data - Reclass raster.
spClipPoint             Spatial - Clip (intersect) point vector layer
                        with polygon vector layer.
spClipPoly              Spatial - Clip (intersect) polygon vector layer
                        with polygon vector layer.
spClipRast              Spatial - Subsets a raster to a polygon extent
                        or boundary.
spExportSpatial         Spatial - Exports an sf object.
spExtractPoly           Spatial - Extracts point attribute values from
                        SpatialPolygons layer(s).
spExtractRast           Spatial - Extracts point attribute values from
                        raster layer(s).
spGetAuxiliary          Spatial wrapper - Extracts and compiles
                        auxiliary data within a specified boundary.
spGetEstUnit            Spatial wrapper - Extracts point attribute
                        values and area from a simple feature or raster
                        estimation unit layer.
spGetPlots              Spatial wrapper - Extracts plot data within a
                        given boundary.
spGetSAdoms             Spatial wrapper - Generate a set of model
                        domain units for Small Area Estimation (SAE)
                        strategies.
spGetStates             Spatial wrapper - Extracts states that
                        intersect a boundary.
spGetStrata             Spatial wrapper - Extracts point attribute
                        values and pixel counts for strata and
                        estimation unit spatial layers.
spGetXY                 Spatial wrapper - Extracts XY coordinates
                        within a given boundary.
spImportSpatial         Spatial - Imports a spatial vector layer to an
                        S4 Spatial object.
spMakeSpatialPoints     Spatial - Generates an S4 SpatialPoints object
                        from X/Y coordinates.
spPoly2Rast             Spatial - Converts SpatialPolygons layer to
                        raster.
spReprojectRaster       Spatial - Reprojects an Esri shapefile (*shp)
                        or S4 Spatial object.
spReprojectVector       Spatial - Reprojects an sf spatial object.
spUnionPoly             Spatial - Generate a unioned sf object with
                        polygons and attributes from two sf polygon
                        objects.
spZonalRast             Spatial - Extracts summary statistics by
                        polygon (i.e., zone) for a raster.
stunitco                SpatialPolygonsDataFrame with FIA state, unit,
                        county codes and names
