New Contributor
Posts: 3

# Base Sas

 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.

Super User
Posts: 23,663

## Re: Base Sas

Since this is homework I'll only give some hints. Good Luck.
b) Look into a format
c) IF statement
d) WHERE statement
New Contributor
Posts: 3

## Re: Base Sas

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

New Contributor
Posts: 3

## Re: Base Sas

/*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;

Super User
Posts: 23,663

## Re: Base Sas

Look at PROC FORMAT not the format statement.
Super User
Posts: 13,498

## Re: Base Sas

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

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