The following SAS program is submitted:
data work.new;
length word $7;
amount = 4;
if amount = 4 then word = 'FOUR';
else if amount = 7 then word = 'SEVEN';
else word = 'NONE!!!';
amount = 7;
run;
Which one of the following represents the values of the AMOUNT and WORD variables?
A. amount word
7 FOUR
B. amount word
7 SEVEN
C. amount word
4 FOUR
D. amount word
4 ' ' (missing character value)
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A
ReplyDeleteCould you please expalinn why A
ReplyDeletevalue of amount=7 over lap for amount=4.
ReplyDeleteput output statement before amount=7, we will get
amount=4 and word=four
then amount=7 overlapping amount=4.
check with below statement:-
data work.new;
length word $7;
amount = 4;
if amount = 4 then word = 'FOUR';
else if amount = 7 then word = 'SEVEN';
else word = 'NONE!!!';
output;
amount = 7;
output;
run;
hi~ thank you!! so much~:-)
DeleteYes;Your are dm right this time.
ReplyDeleteSAS reads the first amount 4 and we get the fist obs
4 four
as the sas reads amount = 7 then output, then it replaces the amount 4 to 7.
we get a output like this.
7 four
I ran the code and I found the answer is
ReplyDeleteword amount
FOUR 7
which is the reversed order of A.
Because "length word $7;" first produces a variable word in PDV, then amount = 4;
i am having an exam after 2 weeks...can you pls help me on questions? whether these type of Q's will be there in exam?
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