Hi,
I have a data as shown in below table:
ID | Group | Subgroup |
101 | A | AB |
102 | A | CD |
103 | A | EF |
101 | A | GH |
104 | A | IJ |
102 | A | KL |
501 | B | MN |
521 | B | OP |
531 | B | QR |
501 | B | ST |
531 | B | UV |
540 | B | WX |
From the above table i need to obtain Summary based on Group wise and Subgroup wise.
Note: Within in the group there must be unique Id on overall. EX:101 ID is present in both "AB" and "GH" Subgroup in Group "A". In this case we need to consider only "AB" Subgroup and the other one "GH" can be 0
ID | Group | Subgroup |
101 | A | AB |
102 | A | CD |
103 | A | EF |
0 | A | GH |
104 | A | IJ |
0 | A | KL |
501 | B | MN |
521 | B | OP |
531 | B | QR |
0 | B | ST |
0 | B | UV |
540 | B | WX |
Kindly note: ID 101 can be more than twice among the group.
Thanks,
Ganesh K
Your data is apparently sorted by group/subgroup, and you want to reset ID to 0 for any id that has already appeared within the group/subgroup. As @LinusH said, it's not clear to me why one would do this (as opposed to, say, adding a second variable indicating a given id has already been present), but here is a way to do it in one step:
data want;
set have;
by group subgroup;
length list $2000;
retain list ' ';
if first.group then list='';
if findw(list,cats(id),',') then id=0; /* Finds a word within a string with comma separators*/
else list=catx(',',list,id);
drop list;
run;
Notes:
data have;
infile cards truncover expandtabs;
input ID Group $ Subgroup $;
cards;
101 A AB
102 A CD
103 A EF
101 A GH
104 A IJ
102 A KL
501 B MN
521 B OP
531 B QR
501 B ST
531 B UV
540 B WX
;
run;
data have;
set have;
array x{999999} _temporary_;
if id not in x then do;n+1;x{n}=id;end;
else id=0;
run;
I think the OP wants within group unique id's, not neccessarily unique overall.
Opps. I must browse it too quickly .
Fixed a typo .
data have;
infile cards truncover expandtabs;
input ID Group $ Subgroup $;
cards;
101 A AB
102 A CD
103 A EF
101 A GH
104 A IJ
102 A KL
501 B MN
521 B OP
531 B QR
501 B ST
531 B UV
540 B WX
;
run;
data have;
set have;
by group;
array x{999999} _temporary_;
if first.group then do;n=0;call missing(of x{*});end;
if id not in x then do;n+1;x{n}=id;end;
else id=0;
run;
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