SAS Lesson 5: Data Analysis Quiz

Questions and Answers

Which titles appear in the final PROC PRINT results?

The Top Line, The Next Line

The Top Line, The Second Line

The Top Line, The First Line, The Next Line

The Top Line (correct)

Which statement is true based on the given program?

The column BatAvg will have a permanent label in the sashelp.baseball data set.

The label for BatAvg will appear in the PROC MEANS report. (correct)

The label for BatAvg will appear in both reports.

The label for BatAvg will appear in the PROC PRINT report.

Which statement is true regarding a BY statement in a reporting procedure such as PROC PRINT?

The BY statement groups the report by the specified columns. (correct)

Only one column can be specified in the BY statement.

The BY statement must be the first statement after the PROC statement.

The BY statement is responsible for sorting the table.

Which statement is false concerning the FREQ procedure?

The NOPROCTITLE option can be placed in the PROC FREQ statement to remove the procedure title The FREQ Procedure. Signup and view all the answers

Which PROC FREQ step creates the results shown here?

proc freq data=sashelp.shoes nlevels; tables Region / nocum; run; Signup and view all the answers

What report is created from the following PROC FREQ step?

Table of Type by Cylinders with the Frequency and Percent output. Signup and view all the answers

Which statement is true concerning the MEANS procedure?

The WAYS statement specifies the number of ways to make unique combinations of class columns. Signup and view all the answers

An input table must be pre-sorted by the columns listed in the CLASS statement of a PROC MEANS step.

False Signup and view all the answers

Which statement from PROC MEANS contains valid syntax for creating a summary output table?

output out=work.summary mean(Weight)=TotW; Signup and view all the answers

Study Notes

PROC PRINT Titles

Titles in PROC PRINT are affected by subsequent title statements.
Final output will display "The Top Line" for all PROC PRINT runs once it’s defined.
The last title affects only the PROC PRINT that follows it.

Macro Variable Substitution

Use & symbol to reference macro variables in footnotes.
The correct syntax for substituting the Year variable is: footnote "&year Sales";

DATA Step and Labels

Labels assigned in a DATA step appear in PROC PRINT and PROC MEANS reports.
The label for BatAvg will be visible in PROC MEANS when it is assigned in the DATA step.

BY Statement Functionality

The BY statement organizes output by specified columns but does not sort data.
Multiple columns can be used in a BY statement for grouping.

FREQ Procedure Misconceptions

The NOPROCTITLE option does not exist as described and cannot be used to hide the title in PROC FREQ.
ORDER=FREQ, PLOTS=, and OUT= options are valid and functional within PROC FREQ.

PROC FREQ for Variable Levels

The PROC FREQ step that includes nlevels generates a summary of variable levels for specified columns.
Syntax: proc freq data=sashelp.shoes nlevels; tables Region / nocum; run;

PROC FREQ Output Structure

Specific PROC FREQ steps can generate cross-tabulated data, summarizing frequencies and percentages for selected variables.
Example output includes frequencies of 'SUV' and 'Sedan' types across cylinder counts.

MEANS Procedure Insights

The WAYS statement defines combinations of class variables in PROC MEANS but is not commonly updated.
Output summary from OUT= option does not include automatic columns like COUNT or FREQ.

Input Table Requirements

Input data for PROC MEANS does not need to be sorted based on CLASS statement variables.
PROC MEANS can handle unsorted data, automatically managing groupings as specified.

Summary Output Creation in PROC MEANS

Valid syntax for generating summary tables in PROC MEANS includes the OUT= option.
Correct examples include: output out=work.summary mean(Weight)=TotW; for summarizing mean values.

Description

Test your knowledge of SAS programming with this quiz focusing on the PROC PRINT procedure from Lesson 5. You'll analyze various code snippets to determine the output titles. Ensure you understand how titles affect the printed results in SAS.