SAS 求问70题第2题的答案

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2.Given the following raw data records in TEXTFILE.TXT:

  ----|----10---|----20---|----30
  John,FEB,13,25,14,27,Final
  John,MAR,26,17,29,11,23,Current
  Tina,FEB,15,18,12,13,Final
  Tina,MAR,29,14,19,27,20,Current

The following output is desired:

  Obs  Name  Month  Status    Week1   Week2   Week3   Week4   Week5

   1   John   FEB   Final       $13     $25     $14     $27       .
   2   John   MAR   Current     $26     $17     $29     $11     $23
   3   Tina   FEB   Final       $15     $18     $12     $13       .
   4   Tina   MAR   Current     $29     $14     $19     $27     $20

Which SAS program correctly produces the desired output?


        A.
data WORK.NUMBERS;
   length Name $ 4 Month $ 3 Status $ 7;
   infile 'TEXTFILE.TXT' dsd;
   input Name $ Month $;
   if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;
   else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;
   format Week1-Week5 dollar6.;
run;
proc print data=WORK.NUMBERS;
run;


     B.
data WORK.NUMBERS;
   length Name $ 4 Month $ 3 Status $ 7;
   infile 'TEXTFILE.TXT' dlm=',' missover;
   input Name $ Month $;
   if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;
   else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;
   format Week1-Week5 dollar6.;
run;
proc print data=WORK.NUMBERS;
run;

     C.
data WORK.NUMBERS;
   length Name $ 4 Month $ 3 Status $ 7;
   infile 'TEXTFILE.TXT' dlm=',';
   input Name $ Month $ @;
   if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;
   else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;
   format Week1-Week5 dollar6.;
run;
proc print data=WORK.NUMBERS;
run;


     D.
data WORK.NUMBERS;
   length Name $ 4 Month $ 3 Status $ 7;
   infile 'TEXTFILE.TXT' dsd @;
   input Name $ Month $;
   if Month='FEB' then input Week1 Week2 Week3 Week4 Status $;
   else if Month='MAR' then input Week1 Week2 Week3 Week4 Week5 Status $;
   format Week1-Week5 dollar6.;
run;
proc print data=WORK.NUMBERS;
run;

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关键词：following correctly produces missover Numbers following desired records Tina

答案是C~

input name和month之后要hold住，不能跳到下一个record，所以要加@