Sas array transpose

data average_lag6;
set niud.ovr_lag_all_200110_200201;
array product ms_kartisim
maskorot
l_miuazim
miuazim
ms_hk
sch_hk
halvaot
misgeret_ashrai
osher
pasiv;

array name{10} $ 16;
do i=1 to dim(product);
name[i]=vname(product[i]);
schum=product [i];
varname=name[i];
month_lag=month_lag6;
output;
end;
keep schum varname month_lag;
run;


proc sort data=dug;
BY b;
run;

proc sql;
select distinct
year into: tkufa
separated by '+'
from dug;
quit;



%macro dugma;
%do i=1 %to 2;
DATA stam
(DROP=I year x y year1 year2 z);
;
ARRAY years {2} year1- year2;
ARRAY xs {2} x1-x2;
ARRAY ys {2} y1-y2;
DO I=1 TO 2 UNTIL (LAST.b);
SET dug;
BY b;
years {I}=year;
x_%scan(&tkufa,&i,+)=xs{I};

xs{I}=x;
ys{I}=y;
END;

run;
%end;
%mend;
%dugma;

Sas array transpose

/***The equivalent DATA step code using arrays*/

DATA NEW (KEEP=NAME DATE1-DATE3);
SET OLD;
BY NAME;
ARRAY DATES {3} DATE1-DATE3;
RETAIN DATE1-DATE3;
IF FIRST.NAME THEN I=1;
ELSE I + 1;
DATES{I} = DATE;
IF LAST.NAME;
run;


DATA NEW (KEEP=NAME DATE1-DATE3);
ARRAY DATES {3} DATE1-DATE3;
DO I=1 TO 3;
SET OLD;
DATES{I} = DATE;
END;
/*if we have missing values:*/

PROC FREQ DATA=OLD ORDER=FREQ;
TABLES NAME / NOPRINT OUT=TEMP;
DATA _NULL_;
SET TEMP;
CALL SYMPUT('N',
COMPRESS(PUT(COUNT,3.)));
STOP;


DATA NEW (KEEP=NAME DATE1-DATE&N);
ARRAY DATES {&N} DATE1-DATE&N;
DO I=1 TO &N UNTIL (LAST.NAME);
SET OLD;
BY NAME;
DATES{I} = DATE;
END;

DATA NEW (KEEP=NAME DATE1-DATE&N);
SET OLD;
BY NAME;
ARRAY DATES {&N} DATE1-DATE&N;
RETAIN DATE1-DATE&N;
IF FIRST.NAME THEN I=1;
ELSE I + 1;
DATES{I} = DATE;
IF LAST.NAME;
IF I < &N THEN DO I=I+1 TO &N;
DATES{I}=.;
END;
DATA NEW (KEEP=NAME DATE1-DATE20);
ARRAY DATES {20} DATE1-DATE20;
OBSNO + 1;
DO I=1 TO 20 UNTIL (LAST.NAME);
SET OLD;
BY NAME;
IF FIRST.NAME THEN OBSNO=1;
DATES{I} = DATE;
END;


DATA ALL7VARS
(DROP=I DATE RESULT);
ARRAY DATES {3} DATE1-DATE3;
ARRAY RESULTS {3} RESULT1-RESULT3;
DO I=1 TO 3 UNTIL (LAST.NAME);
SET OLD;
BY NAME;
DATES {I} = DATE;
RESULTS{I} = RESULT;
END;
BY NAME;
run;


DATA DIFFER;
SET NEW;
ARRAY DATES {20} DATE1-DATE20;
ARRAY DIFFS {19} DIFF1-DIFF19;
DO I=1 TO 19;
DIFFS{I} = DATES{I+1} - DATES{I};
END;

DATA ALL7VARS
(DROP=I DATE RESULT);
ARRAY DATES {3}DATE1-DATE3;
ARRAY RESULTS {3}RESULT1-RESULT3;
DO I=1 TO 3 UNTIL (LAST.NAME);
SET OLD;
BY b;
DATES {I}=DATE;
RESULTS{I}=RESULT;

END;

Sas proc transpose

data old;
NAME DATE
Amy Date #A1
Amy Date #A2
Amy Date #A3
Bob Date #B1
Bob Date #B2
Bob Date #B3


PROC TRANSPOSE DATA=OLD OUT=NEW
PREFIX=DATE;
VAR DATE;
BY NAME;
run;

******* ;
data new;
NAME DATE1 DATE2 DATE3
Amy Date #A1 Date #A2 Date #A3
Bob Date #B1 Date #B2 Date #B3
******* ;
The PREFIX= option controls the names for the*/
transposed variables (DATE1, DATE2, etc.)*/

/**************************/