topic Re: Base Sas in SAS Programming

Base Sas

AAdi_18 — Thu, 29 Oct 2015 21:29:20 GMT

USUBJID	AGE	TRT	DRUG
1001001	45	active	carbidopa
1001002	56	placebo	dummy
1001003	49	placebo	dummy
1001004	38	active	Combination
1001005	40	placebo	dummy
1001006	46	active	Combination
1001007	50	active	levodopa
1001008	55	active	Combination

1) From the above data&colon;

a) Create a dataset “DEMOG”.

b) Create a dataset “DEMOG_2” and represent the data in the variable drug as follows

alisporivir = “Drug A”

Ribavirin = “Drug B”

Combination = “Drug A + Drug B”

Dummy = “Null”

c) Create a dataset “DEMOG_3” with female subjects receiving active treatment.

d) Create a dataset “DEMOG_4” with subjects whose age is greater than or equal to 40. (#Hint: Either >= or GE can be used)

hi frnds, i'm just a beginner. i have tried these querries. Can anyone pls explain for the options b, c & d.Thanks.

Re: Base Sas

Reeza — Thu, 29 Oct 2015 22:04:45 GMT

Since this is homework I'll only give some hints. Good Luck.
b) Look into a format
c) IF statement
d) WHERE statement

Re: Base Sas

AAdi_18 — Thu, 29 Oct 2015 22:12:23 GMT

ya, i tried but i didn't find the solution.Can u please explain?

Re: Base Sas

AAdi_18 — Thu, 29 Oct 2015 22:37:04 GMT

/*a)*/
data DEMOG;
length DRUG $11;
input USUBJID AGE TRT$ DRUG$;
cards;
1001001 45 active carbidopa
1001002 56 placebo dummy
1001003 49 placebo dummy
1001004 38 active Combination
1001005 40 placebo dummy
1001006 46 active Combination
1001007 50 active levodopa
1001008 55 active Combination
;
proc print data=DEMOG;
run;

/*b)*/

data DEMOG_2;
length DRUG $32;
input USUBJID AGE TRT$ DRUG$;
format carbidopa = “Drug A”
levodopa = “Drug B”
Combination = “Drug A + Drug B”
Dummy = “Null”;
cards;
1001001 45 active carbidopa
1001002 56 placebo dummy
1001003 49 placebo dummy
1001004 38 active Combination
1001005 40 placebo dummy
1001006 46 active Combination
1001007 50 active levodopa
1001008 55 active Combination
;
proc print data=DEMOG_2;
run;

Re: Base Sas

Reeza — Fri, 30 Oct 2015 10:10:06 GMT

Look at PROC FORMAT not the format statement.

Re: Base Sas

ballardw — Fri, 30 Oct 2015 14:37:12 GMT

Additional hint on C: Where is the gender information stored?