Case Study 8.4: Sales of Orthopedic Equipment
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Variables:     

  SALESY :  Sales of Rehabilitation Equipment Since Jan 1
 SALES12 :  Sales of Rehabilitation Equipment for the Last 12 Months
 
     ZIP :  US POSTAL CODE
     HID :  HOSPITAL ID
    CITY :  CITY NAME
   STATE :  STATE NAME

    BEDS :  NUMBER OF HOSPITAL BEDS
    OUTV :  NUMBER OF OUTPATIENT VISITS
     ADM :  ADMINISTRATIVE COST(In $1000's per year)
     SIR :  REVENUE FROM INPATIENT

   RBEDS :  NUMBER OF REHAB BEDS
   PRHIP :  NUMBER OF HIP OPERATIONS  (total for previous year)
  PRKNEE :  NUMBER OF KNEE OPERATIONS (total for previous year)
      TH :  TEACHING HOSPITAL?           0 = no, 1 = yes
  TRAUMA :  DO THEY HAVE A TRAUMA UNIT?  0 = no, 1 = yes
   REHAB :  DO THEY HAVE A REHAB UNIT?   0 = no, 1 = yes
     HIP :  NUMBER HIP OPERATIONS     (total for current year)
    KNEE :  NUMBER KNEE OPERATIONS    (total for current year)
   FEMUR :  NUMBER FEMUR OPERATIONS   (total for current year)

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Format of c84.dat:  "comma delimited" ( "," between row entries)

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Order of variables in c84.dat: 

      zip  hid  city  state <-------(character variables)
      beds rbeds outv adm sir salesy sales12 prhip prknee 
      th trauma rehab hip knee femur
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First row of c84.dat: 

zip    hid     city      state  beds rbeds  outv     adm     sir 

00919, 044604, San Juan   , PR , 386,    0 ,   0 , 12975 ,  4106 , 

salesy  sales12  prhip  prknee  th  trauma  rehab   hip  knee  femur
     2 ,      2 ,   90 ,   101 , 0 ,     0 ,    0 , 101 , 137 ,  100
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