Base Sas

[AAdi_18]

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:

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.

[Reeza]

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

[AAdi_18]

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

[AAdi_18]

/*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;

[Reeza]

Look at PROC FORMAT not the format statement.

[ballardw]

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