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Wednesday, January 27, 2010

Base 63

The following SAS program is submitted:

data work.report;
set work.sales_info;
if qtr(sales_date) ge 3;
run;

The SAS data set WORK.SALES_INFO has one observation for each month in the year 2000 and the variable SALES_DATE which contains a SAS date value for each of the twelve months.

How many of the original twelve observations in WORK.SALES_INFO are written to the WORK.REPORT data set?

A. 2
B. 3
C. 6
D. 9

10 comments:

SASGuru said...

Answer C

The qtr values of each of the months 7,8,9,10,11,12 is 3,3,3,4.4,4..Therefore 6 obs in the final dataset…

Rujuta........ said...

C. 6

siva said...

Answer 6

123 said...

I didn't understand still how you agree on 6?

prakhar said...

answer is 6 .1 observation for each of the month, and 1 sas date value for every month so, only 12 sas date values, in short there are only 12 observations.

subseting condition if qtr(sales_date) ge 3 will give 2 quarters, quarter=3 and quarter=4. each quarter has 3 months therefore 6 months

Amit said...

Ans C.
First 6 months = 2 quarters which will fail the if condition. Only from July qtr(sales_date)>=3.So only 6 observations will be written to the dataset.

shaidacious said...

how come 6 is the answer. I think answer is 3 coz there are 4 quaters and only one quarter greater than 3 so 3 obswervations is the right answer.

shaidacious said...

regrets that is greater than or equal to. I missed that.
Answer is 6.

RS said...

study the ans is very important

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