Help using Base SAS procedures

SAS Help

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Contributor
Posts: 49
Accepted Solution

SAS Help

Hi All,

I have the sas dataset like:

User Rate

A       4

A       4

A       5

A       5

B       2

B       2

B       3

I would like to output :

User Rate1  Rate2

A       4         5

B       2         3

Kindly advise.

SK


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Solution
‎08-14-2013 03:24 AM
Contributor
Posts: 45

Re: SAS Help

Proc SQL qould be good here.

data one;

input user1 $ rate;

datalines;

A 4

A 4

A 5

A 5

B 2

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.


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All Replies
Esteemed Advisor
Posts: 5,156

Re: SAS Help

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

Data never sleeps
Solution
‎08-14-2013 03:24 AM
Contributor
Posts: 45

Re: SAS Help

Proc SQL qould be good here.

data one;

input user1 $ rate;

datalines;

A 4

A 4

A 5

A 5

B 2

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.


Valued Guide
Posts: 2,168

Re: SAS Help

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)

Contributor
Posts: 45

Re: SAS Help

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 4

A 5

A 5

A 2

A 1

A 6

A 3

A 5

A 4

B 2

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;

Frequent Contributor
Posts: 129

Re: SAS Help

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

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