What does the Find function do in SAS?
What does the Find function do in SAS?
Basics. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. If the substring is not found in string, FIND returns a value of 0.
How do I find a substring in a string in SAS?
As name suggests SAS Find () function is basically used to find if given string in interest is present in the master string. Find function returns the position of sub string in the target string if it’s present within; else it returns 0.
What are SAS rules?
4. Rules for SAS variable names
- SAS names must be 33 characters long.
- The first character must be an English letter (A, B, C, . . ., Z) or underscore (_).
- You can use upper or lowercase letters.
- Blanks cannot appear in SAS names.
- Special characters, except for the underscore, are not allowed.
What is Indexc function in SAS?
Searches a character expression for any of the specified characters, and returns the position of that character.
When to use a case insensitive string in SAS?
For example, the uppercase letter “F” and lowercase letter “f” are treated as unique characters. When these two letters represent the same condition (for example, a female patient), the strings need to be handled in a case-insensitive manner, and a SAS programmer might write the following compound IF statement:
How does the find function in SAS work?
The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. If the substring is not found in string, FIND returns a value of 0. If startpos is not specified, FIND starts the search at the beginning of the string and searches the string from left to right.
What happens if a substring is not found in SAS?
If the substring is not found, SAS returns a 0. The syntax of the function is the following: In the example below, the FIND function checks whether a string contains the substring Ms. By default, the FIND function is case sensitive. However, you can add a third parameter to the function to ignore the character case.
When to use upcase or mixed case in SAS?
However, if you plan on comparing many strings (or long strings with mixed case), it is often more efficient to use the UPCASE function to convert the entire string variable to uppercase characters, as shown in the following statements This blog post presents two tips that enable you to handle inconsistent string data in a uniform manner.
