Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - TRIM Function (Want to Get Rid of Trailing Blanks?)

The video tutorial covers the basics of a data step in SAS, including declaring variables and using the length statement. It explains how to create a new variable by combining last and first names, and demonstrates the use of the trim function to remove trailing spaces. The tutorial highlights the advantages of using the trim function over concatenation for handling trailing blanks.

What is the purpose of using a dollar sign in variable declarations?

• To indicate a numeric variable

• To indicate a boolean variable

• To indicate a date variable

• To indicate a character variable

What is the main purpose of the length statement in a data step?

• To set the length of the data step

• To set the length of the input statement

• To set the length of character variables

• To set the length of numeric variables

How do you create a new variable that combines last and first names?

• By using the merge function

• By using the concatenate function

• By using a comma between last and first names

• By using the split function

What is the primary function of the trim function?

• To remove trailing spaces from a string

• To remove leading spaces from a string

• To replace spaces with commas

• To add spaces to a string

Why is the trim function preferred over concatenation in certain cases?

• Because it adds more spaces

• Because it changes the data type

• Because it is faster

• Because it removes trailing blanks