Covariate calculation is completed. NA values are in soil chemistry entries and pre-2008 NASS data. Pre-2008 NASS data are problematic as AZO measurements were mostly available before 2008 (N1=41,580), which takes 62.3 percent of the total rows in AZO measurement data (N0=66,717). Geology and primary aquifer variables were converted to factors.
Calculated data is compressed in RDS format and it is copied to the project directory in the DDN.
Covariate calculation is completed.
NAvalues are in soil chemistry entries and pre-2008 NASS data. Pre-2008 NASS data are problematic as AZO measurements were mostly available before 2008 (N1=41,580), which takes 62.3 percent of the total rows in AZO measurement data (N0=66,717). Geology and primary aquifer variables were converted to factors.Calculated data is compressed in RDS format and it is copied to the project directory in the DDN.