topic Re: Repeat the value in a varaible across the rows. in SAS Programming

Repeat the value in a varaible across the rows.

saslovethemost — Thu, 05 Nov 2015 21:58:51 GMT

I would like to repeat a value in varaible across all the observations.

For ex:

Have:

Obs Product Amount Count

1. Apple 10.0 8

2. Pineapple

3. Strawberry

4. Kiwi

5. Cantaloupe

Want:

Obs Product Amount Count

1. Apple 10.0 8

2. Pineapple 10.0 8

3. Strawberry 10.0 8

4. Kiwi 10.0 8

5. Cantaloupe 10.0 8

Thanks in advance.

Neal

Re: Repeat the value in a varaible across the rows.

Reeza — Thu, 05 Nov 2015 23:25:19 GMT

Is it always the first observation? Is this an existing dataset or does it get created this way somehow.

You can google LOCF (Last observation carried forward)

Re: Repeat the value in a varaible across the rows.

ballardw — Thu, 05 Nov 2015 23:56:52 GMT

Also, does that variable somewhere in the data reset to a new value? Do both always change together or may the Amount reset separately from the count?

Re: Repeat the value in a varaible across the rows.

Astounding — Thu, 05 Nov 2015 23:59:53 GMT

If there is really only a value on the first observation, you can do it this way:

data want;

if _n_=1 then set have (keep=amount count);

set have (drop=amount count);

run;

If there might be additional observations later in the data set that contain AMOUNT and COUNT then you have to go with the LOCF suggestion. It's not all that complicated.

Good luck.

Re: Repeat the value in a varaible across the rows.

MadhuKorni — Fri, 06 Nov 2015 11:28:39 GMT

data want(drop = amount count rename = (amount1=amount count1=count));
set have;
retain amount1 count1;
if Amount ne . then amount1=amount ;
if count ne . then count1=count;
run;