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Lapis Lazuli | Level 10

input table 

 

ID  Month        JAN20   FEB20   MAR 20  ARP20   MAY20  JUN20

1    May20       161       105          90           111         10            99

2   Jun 20         38         75           108          95         151           66

3   May20         200       80          225          22          51            99

4   Apr20          101    109         15            65            88             50

 

output

 

ID   Month         T1         T2      T3

1    May20        105       95       111

2   Jun 20         108      95       151

3    May20        80         225       22

4    Apr             101       109       15

 

In the random sampling some , get last three month  sore to respective player id.

 

for e. g for id =1 , MAY 20 should give  last 3 score of  FEB20,MAR20,APR20 

2 REPLIES 2
Ksharp
Super User
data have;
input  ID  Month : monyy7.       JAN20   FEB20   MAR20  APR20   MAY20  JUN20;
format Month  monyy7. ;
cards;
1    May20       161       105          90           111         10            99
2   Jun20         38         75           108          95         151           66
3   May20         200       80          225          22          51            99
4   Apr20          101    109         15            65            88             50
;

data want;
 set have;
 t1=vvaluex(put(intnx('month',month,-3),monyy5. -l));
 t2=vvaluex(put(intnx('month',month,-2),monyy5. -l));
 t3=vvaluex(put(intnx('month',month,-1),monyy5. -l));
run;
mkeintz
PROC Star

This might be a good case for arrays, especially as the number of available or desired months increases:

 

data have;
input  ID  Month : monyy7.       JAN20   FEB20   MAR20  APR20   MAY20  JUN20;
format Month  monyy7. ;
cards;
1    May20       161       105          90           111         10            99
2   Jun20         38         75           108          95         151           66
3   May20         200       80          225          22          51            99
4   Apr20          101    109         15            65            88             50
;

data want (drop=i);
 set have;
 array cutoff {6} _temporary_ ("01jan2020"d,"01feb2020"d,"01mar2020"d,"01apr2020"d,"01may2020"d,"01jun2020"d );
 array months{6} JAN20--JUN20;
 array t {3};

 do i=1 to 3;
   t{i}= months{whichn(month,of cutoff{*})-4+i};
 end;
run;
--------------------------
The hash OUTPUT method will overwrite a SAS data set, but not append. That can be costly. Consider voting for Add a HASH object method which would append a hash object to an existing SAS data set

Would enabling PROC SORT to simultaneously output multiple datasets be useful? Then vote for
Allow PROC SORT to output multiple datasets

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