topic Re: If Then statement, output is strange -not getting desired one in SAS Procedures

If Then statement, output is strange -not getting desired one

Darpnew — Tue, 30 Jun 2015 05:56:01 GMT

Dear Folks, plz help me with the following program:

data chk_10;

input sno name $ level;

if level = . then exp = 'unknown';

else if level = 1 then exp = 'low';

else if level = 2 or 3 then exp = 'medium';

else exp = 'high';

datalines;

1 Frank 1

2 John 2

3 sui 2

4 sose 1

5 burt 4

6 kelly .

7 juan 1

;

run;

proc print data = chk_10;

title 'chk1-0';

run;

I want in output that for the observation, which has level value as 4, i should get exp = 'high'--

but output is not showing that. in output - for level 4, exp is coming to be 'medium' --

but i am not able to se why is it so.

Appreciate your help-

Re: If Then statement, output is strange -not getting desired one

Steelers_In_DC — Tue, 30 Jun 2015 12:51:43 GMT

The problem is 'if level = 2 or 3' The answer to this is always yes.

data chk_10;

input sno name $ level;

if level = . then exp = 'unknown';

else if level = 1 then exp = 'low';

else if level = 2 or level = 3 then exp = 'medium';

else exp = 'high';

datalines;

1 Frank 1

2 John 2

3 sui 2

4 sose 1

5 burt 4

6 kelly .

7 juan 1

;

run;

Another way would be to put if level > 3 then exp = 'high';

Re: If Then statement, output is strange -not getting desired one

Tom — Tue, 30 Jun 2015 14:35:53 GMT

The condition (LEVEL=2 or 3) is the same as ((LEVEL=2) or 3). Since 3 is always true this condition is always true.

Re: If Then statement, output is strange -not getting desired one

Darpnew — Tue, 30 Jun 2015 15:14:00 GMT

Thanks, could you just help me with another one?

prog is:

data test_26;

infile Q26;

input empname $ 1-4;

if empname = 'Ruth' then input idnum 10-11;

else input age 7-8;

run;

proc print data = test_26;

title 'q26';

run;

input is :

Ruth 23 46

DP 45 19

Cali 34 23

Ruth 21 89

output is coming as:

empname idnum age

Ruth 19 .

Cali . 21

I understand that while reading first record, only empname is read and the pointer moves to the second row - but I am not able to understand rest of the output.

Please help.

Re: If Then statement, output is strange -not getting desired one

dkb — Wed, 01 Jul 2015 01:53:41 GMT

Your first input statement

input empname $ 1-4;

tells SAS to load the contents of columns 1 to 4 into empname and step on to the next record. To keep hold of the same record in case you need to load more data from it later in the data step, you need to use the trailing @ notation:

input empname $ 1-4 @;