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SAS_inquisitive
Lapis Lazuli | Level 10

Hello,

 

I want to populate var2 with subsequent record value if the var1 is missing.

 

data test;
input var1 $ ;
cards;
.
abc
;
run;

data want;
  set test;
  var2=substr(var1,1,1);
run;

Desired output:

var1         var2

.                a

abc           a

1 ACCEPTED SOLUTION

Accepted Solutions
Kurt_Bremser
Super User

Merge the dataset with itself, but start one observation later:

data want;
merge
  test
  test (firstobs=2 rename=(var1=var1x))
;
if var1 = ' '
then var2 = substr(var1x,1,1);
else var2 = substr(var1,1,1);
drop var1x;
run;

View solution in original post

1 REPLY 1
Kurt_Bremser
Super User

Merge the dataset with itself, but start one observation later:

data want;
merge
  test
  test (firstobs=2 rename=(var1=var1x))
;
if var1 = ' '
then var2 = substr(var1x,1,1);
else var2 = substr(var1,1,1);
drop var1x;
run;

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