topic Re: SAS Help in SAS Procedures

SAS Help

Siddharth123 — Wed, 14 Aug 2013 06:26:43 GMT

Hi All,

I have the sas dataset like:

User Rate

A 4

A 5

B 2

B 3

I would like to output :

User Rate1 Rate2

A 4 5

B 2 3

Kindly advise.

Re: SAS Help

LinusH — Wed, 14 Aug 2013 07:16:31 GMT

You could solve this with data step programming using SET - BY, and using first./last.-logic and explicit OUTPUT.

Re: SAS Help

Murray_Court — Wed, 14 Aug 2013 07:24:37 GMT

Proc SQL qould be good here.

data one;

input user1 $ rate;

datalines;

A 4

A 5

B 2

B 3

;

/* precautionary sort */

proc sort data=one;

by user1, rate;

run;

proc sql;

create table two as

select

max(rate) as rate1,

min(rate as rate2

from one

group by user1;

quit;

Should give desired output.

Re: SAS Help

Peter_C — Wed, 14 Aug 2013 10:46:53 GMT

Might one user have more than two rates? What then?

Should the result columns be in the order of the incoming data or ascending value? (as the original, very small, example demonstrates)

Re: SAS Help

Greek — Wed, 14 Aug 2013 12:32:57 GMT

Hello Siddharth!

I have been using SAS for few months now so I am not the most experienced user. Even though there must be a more efficient way, here is what I have for you... Does this work?

/*I arbitrarily added a few more values to test*/

data one;

input user1 $ rate;

datalines;

A 4

A 5

A 2

A 1

A 6

A 3

A 5

A 4

B 2

B 3

B 5

B 6

B 8

B 6

run;

/*Sort the data by rate so that there are no duplicate values on the same letter */

proc sort data=one nodup;

by rate;

run;

/*sort the data again by User1 to be able to transpose in the next step*/

proc sort data=one;

by user1;

run;

/*Transpose and create a new data set*/

proc transpose data=one out=transposed;

by user1;

run;

/*Print to check the results*/

proc print data=transposed;

run;

Re: SAS Help

LarryWorley — Wed, 14 Aug 2013 14:18:46 GMT

The approach proposed by Greek, using Proc Transpose, is the most generic way of handling this. It will handle many conditions, such as the number of values and level of the values, that you will need to consider programmatically if using either data step or sql.

Also it is very efficient -- does its work in memory.

Larry