Hello,
I have a dataset with the following structure:
data have;
input data_set variable_name$ DATA_A$ DATA_B$ DATA_C$ DATA_D$ ;
cards;
1 A num . . .
1 B num . . .
1 C char . . .
1 D num . . .
2 A . num . .
2 B . num . .
2 C . char . .
2 D . num . .
3 A . . num .
3 B . . num .
3 C . . char .
3 D . . num .
4 A . . . num
4 B . . . num
4 C . . . char
4 D . . . num
;;;;;
run;
I want to end up with this:
data want;
input variable_name$ DATA_A$ DATA_B$ DATA_C$ DATA_D$ ;
cards;
A num num num num
B num num num num
C char char char char
D num num num num num
;;;;
run;
Which means that I want to summarize or align my dataset to make it more compact and remove the blank spaces.
Thanks for you help
Here is one way
proc sort data=have;
by variable_name;
run;
data want(drop=data_set);
update have(obs=0) have;
by variable_name;
run;
Result:
variable_name DATA_A DATA_B DATA_C DATA_D A num num num num B num num num num C char char char char D num num num num
Here is one way
proc sort data=have;
by variable_name;
run;
data want(drop=data_set);
update have(obs=0) have;
by variable_name;
run;
Result:
variable_name DATA_A DATA_B DATA_C DATA_D A num num num num B num num num num C char char char char D num num num num
Without a SORT
data have;
input data_set variable_name$ DATA_A$ DATA_B$ DATA_C$ DATA_D$ ;
cards;
1 A num . . .
1 B num . . .
1 C char . . .
1 D num . . .
2 A . num . .
2 B . num . .
2 C . char . .
2 D . num . .
3 A . . num .
3 B . . num .
3 C . . char .
3 D . . num .
4 A . . . num
4 B . . . num
4 C . . . char
4 D . . . num
;;;;;
run;
data _null_;
if _n_=1 then do;
dcl hash H (dataset:'have(obs=0)',ordered: "A") ;
h.definekey ("variable_name") ;
h.definedata ("variable_name","DATA_A", "DATA_B", "DATA_C","DATA_D") ;
h.definedone () ;
end;
set have end=l;
array t(*) DATA_A--DATA_D;
array u(4)$ _temporary_;
do _n_=1 to dim(t);
u(_n_)=t(_n_);
end;
_n_=whichc(coalescec(of u(*)),of u(*));
rc=h.find();
t(_n_)=u(_n_);
h.replace();
if l;
h.output(dataset:'want');
run;
It's finally time to hack! Remember to visit the SAS Hacker's Hub regularly for news and updates.
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.
Ready to level-up your skills? Choose your own adventure.