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Classic Quiz

Quiz Arrays in SAS

Classic Quiz

Quiz Arrays in SAS

Tomowsiak

67 played - 13 yrs ago

Chapter 16 from the book

QUIZ 10 QUESTIONS

hard

expert

Question 1 / 10

In the code shown, how many records are generated?

In the code shown, how many records are generated?

7

However many are in the original file

No records are generated but the code runs

The code is broken

hard

Question 2 / 10

Will the code shown below run, and why or why not?

Will the code shown below run, and why or why not?

Yes. . all looks good

No. . too few variables in the list to match the dimension of the array

There is another problem not listed here

The problem is in the input data step

medium

Question 3 / 10

In the picture shown, the array name is shown correctly.

In the picture shown, the array name is shown correctly.

No. . the array name includes the index

Yes. . this is the correct way of showing just hte array name

hard

Question 4 / 10

Will the code shown below.

Will the code shown below.

Yes. . there is nothing wrong with it. .

No. . 5 : 6 means we're getting at columns 5 and 6. . so we need those int he do loop

It won't work, but for a different reason

medium

Question 5 / 10

The following code is submitted. What are the results?

The following code is submitted. What are the results?

A file called mylib. report2 is created, but it's empty

A file called mylib. report2 is created, and it has 7 fields in it, but the number of observations is unknown from the code.

A file called mylib. report2 is created, and it has 7 fields and 20 obs.

This code doesn't work at all

medium

Question 6 / 10

The following code is submitted. What are the results?

The following code is submitted. What are the results?

This code is broken, so nothing happens.

This code imports 8 fields from the csv, and then creates a new file called report2 in mylib2.

The import step runs, but the array step is broken.

None of the above.

expert

Question 7 / 10

The following code is submitted. What are the results?

The following code is submitted. What are the results?

This code works perfectly, and creates fields, some of which are transformed and some are not.

This code is broken. The line names(i) will create an index out of bounds message.

The part of the code given by the transformation of daytemp works, but not the part given by names.

Something else

medium

Question 8 / 10

The following code is submitted. What are the results?

The following code is submitted. What are the results?

Nothing. . this code is broken

This code works. Now there there is a 1 as the index for names, so it works.

medium

Question 9 / 10

Why are arrays so powerful?

They work out a lot : )

The allow us to reference elements one by one, without having to make a long, error prone list.

Usually, arrays are used with do loops to produce make code very compact.

Both options b and c above.

medium

Question 10 / 10

What's the correct way of thinking about array execution?

A record is read in. The array operates on the elements(columns). . record is output. . next is read in and so on

A column is read. . then we go down the column using the array

A mistake in this Quiz ? Contact the author

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