SAS base sample question

[teddyyu1622]

Hello,

why the answer is 8, I think is 3.

can some solve my problem, thanks.

[japelin]

obs var1 results
1    A   ->output because "if statemens" is true
2    A   ->output because "if statemens" is true
3    B
4    C
5    A   ->output because "if statemens" is true

and the last output statement output all the obs.

[teddyyu1622]

thanks, I got it .

[Reeza · Accepted solution]

@teddyyu1622 Please mark the question as solved once you've received a solution that works for you. Please select the correct solution and choose that as the answer. 

[ballardw]

I would suggest making the data set and running the code to see the results.

Work.one gets 3 records from the first conditional Output.

Then OUTPUT writes records to both output sets unconditionally, so that is 5 records written to both.

Result: 8 records.

[Harkonnen]

Because there are two outputs in the program. The first one will output var1=a in dataset ONE. The second one will output all presented observations in both datasets. So there will be 8 (3+5) obs in summary.