CKD                     CKD
DISR                    Caculate the estimator with the DISR method
HCV                     HCV
ISR                     Caculate the estimator with the ISR method
MMLPCA                  Caculate the estimator on the MMLPCA method
MNIPALS                 Caculate the estimator on the MNIPALS method
MRPCA                   Caculate the estimator on the MRPCA method
Mean                    Caculate the estimator on the Mean method
PM2.5                   PM2.5
SR                      Caculate the estimator on the SR method
orange                  orange
ozone                   ozone
review                  review
