begin_key               Generate the Skeleton of a Column Key
check_key               Check and Prepare a Column Key Object
convert_temp            Convert Temperature Values
cv                      Calculate Coefficient of Variation
expand_key              Generate the Skeleton of a Column Key for Only
                        New Data Files
harmonize               Harmonize Data via a Column Key
lter_sites              Long Term Ecological Research Site Information
read                    Read Data from Folder
site_subset             Subsets the LTER Site Information Table by Site
                        Codes and Habitats
site_timeline           Create a Timeline of Site(s) that Meet Criteria
solar_day_info          Identify Solar Day Information
standardize             Standardize a Single Dataset via a Column Key
