using the format procedure to match userdefine data

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1. data date;
   
2. input  id date $10.;
   
3. cards;
   
4. 1 2006-01-01
   
5. 2 2007-01-01
   
6. 3 2008-01-01
   
7. run;
   
8. /*输出格式format*/
   
9. data work.mydate_fmt /view=work.mydate_fmt;
   
10.         set work.date end=last;
    
11.         retain fmtname 'mydate_fmt' type 'n';
    
12.         rename id=start date=label;
    
13. run;
    
14. /*输入格式informat*/
    
15. data work.mydate_infmt /view=work.mydate_infmt;
    
16.         set work.date end=last;
    
17.         retain fmtname 'mydate_infmt' type 'i';
    
18.         rename date=start id=label;
    
19. run;
    
20. proc format library=work cntlin=work.mydate_fmt;
    
21. run;
    
22. proc format library=work cntlin=work.mydate_infmt;
    
23. run;
    
24. data test;
    
25. input date @@;
    
26. cards;
    
27. 1 3
    
28. run;
    
29. data work.out;
    
30. set work.test;
    
31. ndate=put(date,mydate_fmt.);
    
32. mydate=input(ndate,mydate_infmt.);
    
33. /*format tdate tdate_fmt.;*/
    
34. run;

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step：
1.creating a format from a dataset.
Tpye :

specifies a character variable that indicates the type of format. Possible values are as follows:

C	specifies a character format.
I	specifies a numeric informat.
J	specifies a character informat.
N	specifies a numeric format (excluding pictures).
P	specifies a picture format.

1. data date;
   
2. input  id date $10.;
   
3. cards;
   
4. 1 2006-01-01
   
5. 2 2007-01-01
   
6. 3 2008-01-01
   
7. run;
   
8. /*输出格式format*/
   
9. data work.mydate_fmt /view=work.mydate_fmt;
   
10.         set work.date end=last;
    
11.         retain fmtname 'mydate_fmt' type 'n';
    
12.         rename id=start date=label;
    
13. run;

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2.create the your format or informat using the proc format procedure

1. proc format library=work cntlin=work.mydate_fmt;
   
2. run;

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3.using the put function or input function to finish matching data problem.

1. data test;
   
2. input date @@;
   
3. cards;
   
4. 1 3
   
5. run;
   
6. data work.out;
   
7. set work.test;
   
8. ndate=put(date,mydate_fmt.);
   
9. mydate=input(ndate,mydate_infmt.);
   
10. /*format tdate tdate_fmt.;*/
    
11. run;

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关键词：Procedure format DEFINE Match FORMA procedure library start