> kmeans(df,3)
Error in do_one(nmeth) : NA/NaN/Inf in foreign function call (arg 1)
In addition: Warning message:
In kmeans(df, 3) : NAs introduced by coercion

> sapply(df,class)
              IncomeShortDSC                      TypeDSC
                    "factor"                     "factor"
                   RegionDSC              MSDERDRGTypeDSC
                    "factor"                     "factor"
              EthnicGroupDSC             MaritalStatusDSC
                    "factor"                     "factor"
                    SourceCD                       TypeCD
                    "factor"                     "factor"
                    StatusCD                     GenderCD
                    "factor"                     "factor"