allCategory             All possible values from the CATEGORY field.
allCommodity            All possible values from the COMMODITY field.
allCounty               All possible values from the COUNTY field.
allDataItem             All possible values from the DATA ITEM field.
allDomain               All possible values from the DOMAIN field.
allGeogLevel            All possible values from the GEOGRAPHY LEVEL
                        field.
allGroup                All possible values from the GROUP field.
allProgram              All possible values from the PROGRAM field.
allSector               All possible values from the SECTOR field.
allState                All possible values from the STATE field.
getQuickstat            getQuickstat
plotUSDA                plotUSDA
tidyUSDA                tidyUSDA: An Interface to USDA QuickStats Data
                        with Mapping Capabilities.
