Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - Verify Function

The video tutorial introduces the verify function, a character function used to verify and clean data by identifying errors. The instructor explains the setup of data steps, the use of if-then statements, and how the verify function works with two arguments to check for valid characters. The tutorial demonstrates how to output errors and valid data into separate data sets and emphasizes the importance of printing and reviewing these results to ensure data accuracy.

What is the primary purpose of the verify function in data processing?

• To merge multiple datasets

• To sort data alphabetically

• To verify and clean data by identifying errors

• To create new datasets

Which of the following best describes the first argument of the verify function?

• It sets the output format for the data

• It indicates the character variable or value to check for errors

• It defines the valid characters for the data

• It specifies the dataset to be used

What does the second argument of the verify function represent?

• The valid characters that are allowed

• The sorting order of the data

• The error message to display

• The name of the dataset

How does the if-then statement work in conjunction with the verify function?

• It outputs data to different datasets based on validity

• It sorts the data into ascending order

• It deletes invalid data from the dataset

• It merges two datasets into one

What is the result of running the verify function with an invalid character in the data?

• The data is ignored

• The data is corrected automatically

• The data is output to the errors dataset

• The data is deleted

What should be done after identifying errors using the verify function?

• Delete the errors dataset

• Merge the errors and valid datasets

• Print both datasets to review the results

• Ignore the errors and proceed

In the example provided, which character was identified as an error in the data?

• Q

• B

• A

• C