DATA Step, Macro, Functions and more

Base Sas

Reply
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:

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: 17,960

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: 17,960

Re: Base Sas

Look at PROC FORMAT not the format statement.
Super User
Posts: 10,550

Re: Base Sas

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

Ask a Question
Discussion stats
  • 5 replies
  • 212 views
  • 0 likes
  • 3 in conversation