Summary statistics for drg1988 dataset :

by Jean Roth , jroth@nber.org , 22 Apr 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
         drg |          0
      drgnum |        477         239    137.8423          1        477
   drgweight |        477    1.219259    1.237504          0    11.9225
     drgdesc |          0
      drgsys |          0
-------------+---------------------------------------------------------
     drgvers |        477           5           0          5          5
        trim |        477    201.9706    77.04833          0        510
        alos |        477    5.988889    3.857055          0       33.3
         mdc |        477    8.989518    5.822469          0         23
     medsurg |          0
-------------+---------------------------------------------------------
      fydate |        477       10135           0      10135      10135
       fyear |        477        1988           0       1988       1988
     mdcdesc |          0

by Jean Roth , jroth@nber.org , 22 Apr 2016