To rename a variable when reading a dataset in SAS, you use the rename= option inside the parentheses following the dataset's name in the set statement. The correct syntax for renaming the variable 'Name' to 'StudentName' is: rename=(oldname=newname). Therefore, the correct option is A, which correctly places the old variable name 'Name' first, followed by an equal sign, and then the new variable name 'StudentName'. The parentheses enclose the rename operation, and it is correctly nested within the set statement.
References:
SAS documentation on the RENAME= data set option, SAS Institute.
In SAS, the correct syntax for assigning labels to variables is to use the LABEL statement within a DATA step or a PROC step. Labels are assigned to variables using the format variable='label'. The correct syntax for the LABEL statement is represented by option B.
Here’s the breakdown:
FName=’First Name’ correctly assigns the label First Name to the variable FName.
LName=’Last Name’ correctly assigns the label Last Name to the variable LName.
Each variable and label pair is separated by a space, and the overall statement ends with a semicolon, which is the proper syntax for a LABEL statement in SAS.
Options A, C, and D are incorrect due to various syntax errors like the use of the wrong character for the apostrophe, missing apostrophes, incorrect punctuation, and in the case of option C, an incorrect conjunction ‘and’ which is not used in LABEL statements.
References:
SAS 9.4 documentation for the LABEL statement: SAS Help Center: LABEL Statement
Questions 6
Which PROC PRINT option displays variable labels in the report?
In the PROC PRINT statement, the LABEL option is used to display variable labels in the report. If the variables in the dataset have labels associated with them, the LABEL option will ensure that these labels are used in the output instead of the variable names.
Here's how the LABEL option is used:
proc print data=sashelp.class label; (assuming sashelp.class is the dataset in question)
The LABEL keyword after the dataset name within the PROC PRINT call activates the use of variable labels in the output report.
The other options provided are incorrect for the following reasons:
SHOWLABELS is not a valid SAS option.
COLS does not exist as a PROC PRINT option in SAS.
LABELS= is not a correct syntax for any SAS procedure.
References:
SAS 9.4 documentation for the PROC PRINT statement with LABEL option: [SAS Help Center: PROC PRINT]
The report shown is a cross-tabulation of 'Region' by 'Product'. The FREQ Procedure indicates that PROC FREQ has been used, and the presence of 'Frequency', 'Percent', 'Row Percent', and 'Column Percent' suggests that a cross tabulation (or contingency table) has been requested. The correct code for this output would include the tables statement to specify the two variables ('Region' and 'Product') with an asterisk between them, which indicates a request for a cross-tabulation of these two categorical variables, and the crosslist option to display the table in a cross-tabulated list format. Therefore, option D is the correct answer:
proc freq data=sashelp.shoes;
tables region*product / crosslist;
run;
Options A and C use the order=freq option incorrectly, as this option would order the table by frequency counts rather than providing a cross-tabulation. Option B is missing the crosslist option needed to produce the cross-tabulated format.
