topic Re: Modify Table in SAS Programming

Modify Table

alexandralorenzo — Thu, 31 Mar 2016 12:17:04 GMT

Hello everyone,

This is an example of my problem I have this dataset:

john 1 2 3

alex 2 5 6

tito 1 2 6

And I want this:

john 1

john 2

john 3

alex 2

alex 5

alex 6

tito 1

tito 2

tito 6

If you have any idea ( of course I have 100 hundred columns this is just an example).

Thanks a lot.

Re: Modify Table

Reeza — Thu, 31 Mar 2016 12:25:53 GMT

Try Proc Transpose or a data step using arrays.

If you need examples google 'ucla wide to long' or search on here.

Re: Modify Table

RW9 — Thu, 31 Mar 2016 12:48:07 GMT

data have;
  a="john"; v1=1; v2=2; v3=3;
run;
proc transpose data=have out=want;
  by a;
  var v:;
run;

Re: Modify Table

FreelanceReinh — Thu, 31 Mar 2016 13:50:39 GMT

Hello Alexandra,

Try this:

data have;
input name $ x y z;
cards;
john 1 2 3
alex 2 5 6
tito 1 2 6
;

data want;
set have;
array oldvar x--z;
do _i=1 to dim(oldvar);
  value=oldvar[_i];
  output;
end;
keep name value;
run;

If your variables x, y, z (etc.) are character variables, please define the length of new variable VALUE appropriately using a LENGTH statement. If some are numeric and others are character and you want to have all values in a single character variable VALUE, you have to create two arrays (one for the numeric, one for the character variables) and convert the numeric values to character values by means of the PUT function in the assignment statement (value=...) of one of (then) two DO loops.

Re: Modify Table

alexandralorenzo — Mon, 04 Apr 2016 18:47:50 GMT

Thanks a lot

Re: Modify Table

alexandralorenzo — Mon, 04 Apr 2016 18:49:06 GMT

The problem with proc transpose that you need a proc sort and take a long time 😕