Frequencies for first 10,000 rows of psi_15_acc_lac_betterstr variable in vwhqi_hosp_ahrq_state dataset :

PSI_15_ACC_LA |
     C_BETTER |      Freq.     Percent        Cum.
--------------+-----------------------------------
            0 |      4,096       40.96       40.96
            1 |      1,808       18.08       59.04
            3 |      4,096       40.96      100.00
--------------+-----------------------------------
        Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016