Sas Find String In Text
Sas Find String In Text
3 Functions and CALL Routines.
Solved: Searching a string for a list of words - SAS Support Communities Solved: Hi, I'm having troubles figuring out what function I should use to search a string variable for a number of words, any help greatly Community Home Welcome Getting Started Community Memo All Things Community SAS Community Library SASWare Ballot. Do not add spaces unless they are part of the matching criteria because every character counts.
A Simple Approach to Text Analysis Using SAS® Functions.
How to Count the Number of Specific Characters in a SAS String.
The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. Below is a simple example showing how you could use find()to find characters in a string and get the position of the characters. I need each occurrence in a separate variable; With my limited knowledge of PRX functions I was able to come up with following only.
3 Functions and CALL Routines ">FINDW Function :: SAS(R) 9.
I need to parse string with following pattern for further processing. It will return the location in the string where the variable value was found.
perform a fuzzy match using SAS functions">How to perform a fuzzy match using SAS functions.
SAS: Filter for Rows that Contain String You can use the following methods to filter SAS datasets for rows that contain certain strings: Method 1: Filter Rows that Contain Specific String /*filter rows where var1 contains "string1"*/ data specific_data; set original_data; where var1 contains 'string1'; run;. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. You can use the FIND function in SAS to find the position of the first occurrence of some substring within a string. Customer Support SAS Documentation. In order to be taken literally, you must escape the characters ^. Just look at the last two data steps you ran: Data Final; length ReviewText $ 9999;run;data final0; Word = scan (ReviewText,1,'*'); if word in ('pillow' 'pillows') then Pillow=1; set final;run; The first one will make an empty dataset named FINAL with the single character variable named ReviewText. In this example, the string “I am a expert SAS programmer” is the. While both functions accept varying numbers of arguments, usage of the third argument is not compatible. location=findw ("ABC;EFG;IJKL;MNOPQ",var,';','t');.
SAS Character Functions : The Ultimate Guide.
to Extract a Specific Word from a SAS String.
Syntax: LOWCASE(character-value) 3. , its length), with the LENGTH function. This function takes the string you want to scan as an argument, as well as a number that represents the position of the word you want to extract. SAS® Help Center. If startpos is not specified, FIND starts the search at the beginning of the string and searches the string from left to right. The syntax of the function is the following:.
Solved: Searching a string for a list of words.
There is always a white space after the string ends (maybe it helps search). Using SAS data step Select values that start with a character string - Adjusting for Different Letter Cases Select values that end with a character string Select values the contain a character string Select values with multiple like conditions 2. The FIND function searches for substrings of characters in a character string, whereas the FINDC function searches for individual characters in a character string.
SAS: Wildcard characters in IF statements.
SAS : Extracting numbers and text from alphanumeric string">SAS : Extracting numbers and text from alphanumeric string.
Just look at the last two data steps you ran: Data Final; length ReviewText $ 9999;run;data final0; Word = scan (ReviewText,1,'*'); if word in ('pillow' 'pillows') then Pillow=1; set final;run; The first one will make an empty dataset named FINAL with the single character variable named ReviewText. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. To be able to match a code that appears at the beginning of the TEXT string you need to put a space before it. The pipes separate the search strings. You can find a specific character, such as a letter, a group of letters, or special characters, by using the index function. i have a long text string in SAS, and a value is within it of variable length but is always proceeded by a '#' and then ends with ' ,' is there a way i can extract this and store as a new variable please? e. You can use the FIND function in SAS to find the position of the first occurrence of some substring within a string. If the substring is not found in string, FIND returns. For more information, see PRXMATCH in the Functions section of the SAS Language Reference:Dictionary in the Online SAS Documentation.
SAS Help Center">SAS Help Center.
; datalines; word word, word, #12.
SAS (With Examples)">How to Use the INDEX Function in SAS (With Examples).
INDEXW - searches for a string. The LENGTH function takes as argument a string and returns the number of characters it has. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. The FIND function and the INDEX function both search for substrings of characters in a character string. You can use the SCAN function in SAS to extract the nth word from a string. This function uses the following basic syntax: INDEX (source, excerpt) where: source: The string to analyze excerpt: The string of characters to search for within source. data have; infile datalines truncover ; input var $200. Thus, it doesn’t change the storage length of the variable, even when you assign the. 1 Answer Sorted by: 2 Both FIND and PRXMATCH would work fine, and have no such requirement of hardcoded values. There is always a white space after the string ends (maybe it helps search).
Functions and CALL Routines: FIND Function.
Solved: Finding a word in Text!.
SAS Data Set Options Formats Functions and CALL Routines Definitions of Functions and CALL Routines Syntax Using Functions and CALL Routines Function Compatibility with SBCS, DBCS, and MBCS Character Sets Using Random-Number Functions and CALL Routines Date and Time Intervals Pattern Matching Using Perl Regular Expressions (PRX). The SAS find()function returns the position of where the substring occurs in the character variables, where 1 is the first position. Just look at the last two data steps you ran: Data Final; length ReviewText $ 9999;run;data final0; Word = scan (ReviewText,1,'*'); if word in ('pillow' 'pillows') then. Here, s is a text string (character variable) to be parsed; x is a character variable holding a group of characters that we are searching for within s; p is a position of x value found within s; n is an instance number. 34, word, word'; var2 = scan (scan (var1,2,'#'),1,','); put var2=; run; Share Improve this answer Follow answered Jul 31, 2018 at 15:32 user667489 9,421 2 22 35 Add a comment 0.
th instance of a substring within a string.
I would like to search for trigger, which is 5 characters wide and select the random_word after that.
SAS : Character Functions.
search begins at position – startpos and proceeds to the left. Somewhere within the variable is the string Captain or General or Colonel, etc (i have to find 144 differerent strings in total). Solved: Find Text in a Column - SAS Support Communities Solved: Greetings Community I have a very simple/quick question: I have a column of the data that contains text. sas: In a text string how to find a word after a trigger. It doesn’t remove the leading blanks instead it moves them to the end of the string. PRX means Perl regular expression. For example, suppose that you have a data file with names. Key SAS string functions used in this text mining application Following three SAS string functions are the key components of our application. How do you extract this word from your string in SAS? In SAS, you can use the SCAN function to extract a word from a string. if prxmatch ("m/this|that|other/oi",charvar) > 0 then found=1; else found=0; The 'm' tag at the beginning of the search string tells PRXMATCH that it is doing a matching operation, this is the default. You can use the SCAN function in SAS to extract the nth word from a string. If the substring is not found in string, FIND returns a value of 0. For example, suppose that you have a data file with names and other information and you want to identify only those records for people with "Harvey" in their name.
Functions and CALL Routines: COMPARE Function.
The 'o' tag at the end tells SAS to compile the parse string once. In SAS, find function which helps to find the input strings for the first position and occurrence of the specified substring. DEFG hijkj LMNO = YYYYYYYY" XX can be any character from A-Z (uppercase) (total 2 characters, always). There are minor differences between the COMPARE and KCOMPARE functions. Comparisons The FIND function searches for substrings of characters in a character string, whereas the FINDC function searches for individual characters in a character string. There can be multiple occurrences of this string. Operating System and Release Information. FIND works particularly well for this. Furthermore, positions 7-9 contain a numeric code. For example, suppose that you have a data file with names and other information and you want to identify only those records for people with "Harvey" in their name. Macro Language Reference. It will return the substring position that cannot be found on the character string, substring, modifier, or start-position of the strings with optional arguments on the startpos of the Value. excerpt: The string of characters to search for within source. I need to find each instance of Captain in the text and then put Captain into a Variable called Type. excerpt: The string of characters to search for within source. Below is a simple example showing how you could use find()to find characters in a string and get the position of the characters. INDEXW - searches for a string which could be a single or multiple words and returns the starting position of the first occurrence of the search expression in the target expression. Please contact your admin to fix the configuration or consent on behalf of the tenant. If startpos is greater than the length of the string, then FINDW returns a value of 0. The pipes separate the search strings. This code writes the following text to the SAS. It returns a character string with specified characters removed from the original string.
2">Functions and CALL Routines: COMPARE Function.
I am using SAS to do some word searching. If the substring is not found in string, FIND returns a value of 0. Here, s is a text string (character variable) to be parsed; x is a character variable holding a group of characters that we are searching for within s; p is a position of x value found within s; n is an instance number. Here are the two most common ways to. In SAS you can use the function FIND to check whether a string contains a combination of characters (or a single character). SAS Viya Programming. In the following syntax, the INDEX function is used to generate a value for the variable SAS_POSITION. Or, check the application identifier in the request to ensure it matches the configured client application identifier. You can tell it what characters are used to mark the end of words. Welcome to SAS Programming Documentation for SAS® 9. data have; input patientID diagnosis_code $ cancer age gender $; datalines; 1 250.
SAS : Extracting numbers and text from alphanumeric string.
Wildcard matches in DATA step if statements can be done using the PRXMATCH function.
Macro Quoting: %STR and %NRSTR Functions.
How to Use the INDEX Function in SAS (With Examples).
The INDEX function in SAS.
Here are the two most common ways to use this function: Method 1: Find Position of First Occurrence of String data new_data; set original_data; first_occurrence = find(variable_name, "string"); run;. Without that extra space before TEXT then it would not match since you are searching for spaces on both sides of the string. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. I have a SAS dataset with multiple observations containing text from a PDF in a single variable. Below is a simple example showing how you could use find()to find characters in a string and get the position of the characters. You can also use the modifier options to tell it to automatically trim the trailing blanks and/or ignore case.
Character Functions — Intro to SAS Notes.
This function is most useful when comparing two strings that should be the same, but may only differ in case or due to leading or trailing blanks. SAS : Extracting numbers and text from alphanumeric string Deepanshu Bhalla 2 Comments SAS Suppose you wish to extract numbers and text from alphanumeric string in SAS. 4 and SAS® Viya® 3. Here are the two most common ways to use this function: Method 1: Find Position of First Occurrence of String data new_data; set original_data; first_occurrence = find(variable_name, "string"); run;. This function takes the string you want to scan as an argument, as well as a number that represents the position of. Obviously, it doesn't handle 'b' and 'e' I mentioned above. If startpos is greater than the length of the string, then FINDW returns a value of 0. In SAS, you can find the total number of characters in a string (i. 5 Answers Sorted by: 2 Double scan should also work if you only have a single #: data _null_; var1 = 'word word, word, #12. Using this example from the SAS documentation, something like this should work: data test; set _your_data_set; retain re; if _N_ = 1 then re = prxparse ('/\. Add the modifier t to tell it to trim the spaces from the firstname/lastname variable (or use the trim function). You can use the INDEX function in SAS to return the position of the first occurrence of a string within another character string. Or, the admin has not consented in the tenant. In SAS you can use the function FIND to check whether a string contains a combination of characters (or a single character). In SAS, you can find the total number of characters in a string (i. In this example, the string “I am a expert SAS programmer” is the source that will be searched and “SAS” is the character string that SAS will be searching for. search begins at position – startpos and proceeds to the left. To extract a substring in SAS we can use the SUBSTR function. If this combination of characters is found, the FIND function returns the. Additionally, the length is used for calculating total characters among the searches finding the occurrence of the specified substring, and returning the same position of the strings. Note: Sample 1 uses INDEX to search for the first occurrence of a 'word' anywhere in a string. You can find a specific character, such as a letter, a group of letters, or special characters, by using the index function. Key SAS string functions used in this text mining application Following three SAS string functions are the key components of our application. How do you extract this word from your string in SAS? In SAS, you can use the SCAN function to extract a word from a string. SAS Help Center. Using PROC SQL Select values that start with a character string. If startpos is less than the negative of the length of the string, then the search begins at the end of the string. I have a SAS dataset with multiple observations containing text from a PDF in a single variable. There are 3 SAS character functions that you can use to change the case of characters in SAS. It is a common data manipulation task in retail and ecommerce industry.
How to Use the FIND Function in SAS (With Examples).
How can I find things in a character variable in SAS?.
put string=; run; It returns ABCDEF1234 Example 4 : Keep Integer Values from String data _null_; x='ABCDEF-!1. Suppose you wanted to have a text string include the name of a macro function: This is the result of %NRSTR. If startpos is less than the negative of the length of the string, then the search begins. If startpos is not specified, FIND starts the search at the beginning of the.
Solved: Find Text in a Column.
The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. You can find a specific character, such as a letter, a group of letters, or special characters, by using the index function. In order to be taken literally, you must escape the characters ^. 34, word, word'; var2 = scan (scan (var1,2,'#'),1,','); put var2=; run; Share Improve this answer Follow answered Jul 31, 2018 at 15:32 user667489 9,411 2 22 35 Add a comment 0. PRXMATCH (regular-expression-pattern,text-to-evaluate)PRXMATCH Function documentation. Many times numerical value in Product ID refers to a sub-product category. FIND works particularly well for this. SAS Find is the function to find the input characters on the required user inputs. You can find a specific character, such as a letter, a group of letters, or special characters, by using the index function. LEFT Function It moves leading blanks to the end of the value. If string is declared as varchar and you are processing multi-byte data, then FIND processes DBCS. In the above example you just need to replace 'h' with your search criteria.
PRXMATCH in place of multiple INDEX functions.
For more information, see PRXMATCH in the Functions section of the SAS Language Reference:Dictionary in the Online SAS Documentation. Welcome to SAS Programming Documentation for SAS® 9. If the substring is not found in. The SAS find()function returns the position of where the substring occurs in the character variables, where 1 is the first position. If the substring is not found, SAS returns a 0. Solved: Searching a string for a list of words - SAS Support Communities Solved: Hi, I'm having troubles figuring out what function I should use to search a string variable for a number of words, any help greatly Community Home Welcome Getting Started Community Memo All Things Community SAS Community Library SASWare Ballot Upcoming Events. In SAS you can use the function FIND to check whether a string contains a combination of characters (or a single character). In SAS, we can check if a variable contains a specific string with the containsoperator in a where statement. I have been trying: if Text contains 'Captain' then Type = 'Captain' - this gives an arithmetic error. put string=; run; It returns ABCDEF1234 Example 4 : Keep Integer Values from String data _null_; x='ABCDEF-!1. There are minor differences between the COMPARE and KCOMPARE functions. Solved: Find Text in a Column - SAS Support Communities Solved: Greetings Community I have a very simple/quick question: I have a column of the data that contains text. For i = LBound (elements) To HBound (elements) If Find (elements {i},"h") > 0 Then do; /*do stuff*/ End; Next; You can use the find function which would give you the character count of your search criteria and then just apply it to some logic. There is always a white space after the string ends (maybe it helps search). There can be multiple occurrences of this string. You can use the INDEX function in SAS to return the position of the first occurrence of a string within another character string. Method 1: Using SAS data step Here is a code example: %let STR = Some strings have unwanted sub strings in them ; %let SUB = ; data _null_ ; NEW_STR = transtrn ("&STR", "&SUB", trimn('')) ; call symputx ('NEW' ,NEW_STR) ; run ; %put &=STR; %put &=NEW;. Somewhere within the variable is the string Captain or General or Colonel, etc (i have to find 144 differerent strings in total). You could use the index function as shown below. Solved: Searching a string for a list of words - SAS Support Communities Solved: Hi, I'm having troubles figuring out what function I should use to search a string variable for a number of words, any help greatly Community Home Welcome Getting Started Community Memo All Things Community SAS Community Library SASWare Ballot Upcoming Events.
Sas Check if array/list contains element.
I have a SAS dataset with multiple observations containing text from a PDF in a single variable.
Character Functions — Intro to SAS Notes">9.
The following example shows the differences in the syntax: COMPARE ( string-1, string-2 <, modifiers >) KCOMPARE ( string-1 <, position <, count >>, string-2 ). This function uses the following basic syntax: SCAN (string, count) where: string: The string to analyze count: The nth word to extract Here are the three most common ways to use this function: Method 1: Extract nth Word from String. SAS LEFT function is used to left-align text values. Key SAS string functions used in this text mining application Following three SAS string functions are the key components of our application. documentation.
the Number of Specific Characters in a SAS String">How to Count the Number of Specific Characters in a SAS String.
LOWCASE LOWCASE changes all letters to lowercase. UPCASE UPCASE function is used to change all letters to uppercase. This code writes the following text to the. If the substring is not found, SAS returns a 0. Here, s is a text string (character variable) to be parsed; x is a character variable holding a group of characters that we are searching for within s; p is a position of x value found within s; n is an instance number. Syntax: UPCASE(character-value) 2. 1 Answer Sorted by: 2 Both FIND and PRXMATCH would work fine, and have no such requirement of hardcoded values. [$ ()|*+? {\ with a backslash \ as they have special meaning.
3 Functions and CALL Routines: ….
find a string THEN newvar = string.
If there is no n-th instance of x within s found, then the code returns p=0. *?)\"/'); if prxmatch (re, var) then result = prxposn (re, 1, var); run; (This assumes your data is in a variable called var. data want; set have; where variable contains "something"; run; When working in SAS, the ability to easily be able to create complex filters and get the subsets we desire is valuable.
PDF A Simple Approach to Text Analysis Using SAS® Functions.
string">Using PRXPARSE and PRXSUBSTR to extract pieces of a string.
Somewhere within the variable is the string Captain or General or Colonel, etc (i have to find 144 differerent strings in total). If startpos is greater than the length of the string, then FINDW returns a value of 0. The SAS find()function returns the position of where the substring occurs in the character variables, where 1 is the first position. Below is a simple example showing.
Find a Substring in SAS with the FIND function.
In the following syntax, the INDEX function is used to generate a value for the variable SAS_POSITION. Note: Sample 1 uses INDEX to search for the first occurrence of a. Here is the program: %put This is the result of %nrstr (%nrstr); You must use %NRSTR to mask the % sign at compilation, so the macro processor does not try to invoke %NRSTR a second time. It will accept all the special characters, including operators and signs.
How can I find and replace specific text in a SAS data set?.
3 Functions and CALL Routines: Reference.
FINDW Function :: SAS(R) 9.
Data char1; Set char; char1 = left (Name); run; 5. Using this example from the SAS documentation, something like this should work: data test; set _your_data_set; retain re; if _N_ = 1 then re = prxparse ('/\. If start-position is not specified, FIND starts the search at the beginning of the string and searches the string from left to right. COMPRESS (string, characters_to_be_removed, modifier) In the above example, compress (a, '' , 'A') uses 'A. ','k'); put string=; run; It returns 1. data k; a = 'this is a string with some characters'; b = find(a,"str");. \$\d matches a string that has a $ before one digit -> Try it!. If the string is not found, the result is zero. Variable "b" contains numeric values and variable "c" contains characters. This function uses the following basic syntax: INDEX (source, excerpt) where: source: The string to analyze. Moving and Accessing SAS Files. This function takes the place of the following code: if strip (upcase (name1))=strip (upcase (name2)) then do; The COMPARE function can be used to make the same comparison. If this combination of characters is found, the FIND function returns the position of the first occurrence in the string.
Regex tutorial — A quick cheatsheet by examples.
Within that text, I need to look if Community Home Welcome Getting Started Community Memo All Things Community SAS Community Library SASWare Ballot. Solved: Find Text in a Column - SAS Support Communities Solved: Greetings Community I have a very simple/quick question: I have a column of the data that contains text. Output. In SAS, we can check if a variable contains a specific string with the containsoperator in a where statement. In SAS you can use the function FIND to check whether a string contains a combination of characters (or a single character). data k; a = 'this is a string with some characters'; b = find(a,"str");. Choose appropriate INDEX function to find target strings, individual letters, or strings on word boundaries. INDEXW - searches for a string which could be a single or multiple words and returns the starting position of the first occurrence of the search expression in the target expression. To do so, you must use the %NRSTR function to mask the & and prevent the resolution of the macro variable, as in the following example: %macro example; %local myvar; %let myvar=abc; %put %nrstr (The string &myvar appears in log output,); %put instead of the variable value. This function is most useful when comparing two strings that should be the same, but may only differ in case or due to leading or trailing blanks. Example In this example, you have ID codes which contain in the first two positions, a state abbreviation. Or, check the certificate in the request to ensure it's valid.
Solved: Use IF to find a string THEN newvar = string.
234'; string=compress (x,'0123456789. The pipes separate the search strings. Without that extra space before TEXT then it would not match since you are searching for spaces on both sides of the string.
How to Extract a Specific Word from a SAS String.
SAS : Extracting numbers and text from alphanumeric string Deepanshu Bhalla 2 Comments SAS Suppose you wish to extract numbers and text from alphanumeric string in SAS. To be able to match a code that appears at the beginning of the TEXT string you need to put a space before it. if prxmatch ("m/this|that|other/oi",charvar) > 0 then found=1; else found=0; The 'm' tag at the beginning of the search string tells PRXMATCH that it is doing a matching operation, this is the default. You can use the FIND function in SAS to find the position of the first occurrence of some substring within a string. I need to parse string with following pattern for further processing. If startpos is not specified, FIND starts the search at the beginning of the string and searches the string from left to right. If the substring is not found in string, FIND returns a value of 0.
What is a solution to test if a string contains a specific sub string.
This is also the default because the parse string is a constant.
com">How to Use LIKE Operator in SAS.
34, hello hi hello hi word1 #970000 hello hi hello hi #970022, hi word1 123, hello hi hello hi #97. This function uses the following basic syntax: INDEX (source, excerpt) where: source: The string to analyze. You can use the INDEX function in SAS to return the position of the first occurrence of a string within another character string. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. I need to find each instance of Captain in the text and then put Captain into a Variable called Type.
SAS using PRX to find string pattern.
5 Answers Sorted by: 2 Double scan should also work if you only have a single #: data _null_; var1 = 'word word, word, #12. SAS Help Center. In the following syntax, the INDEX function is used to generate a value for the variable SAS_POSITION. Within that text, I need to look if Community Home Welcome Getting Started Community Memo All Things Community SAS Community Library SASWare Ballot Upcoming Events All Recent Topics. To do so, you must use the %NRSTR function to mask the & and prevent the resolution of the macro variable, as in the following example: %macro example; %local myvar; %let myvar=abc; %put %nrstr (The string &myvar appears in log output,); %put instead of the variable value. I have a character string. If the substring is not found in string, FIND returns a value of 0.
How to Use LIKE Operator in SAS.
I have been trying: if Text contains 'Captain' then Type = 'Captain' - this gives an arithmetic error. To extract a substring in SAS we can use the SUBSTR function. SAS Data Set Options Formats Functions and CALL Routines Definitions of Functions and CALL Routines Syntax Using Functions and CALL Routines Function Compatibility with SBCS, DBCS, and MBCS Character Sets Using Random-Number Functions and CALL Routines Date and Time Intervals Pattern Matching Using Perl Regular Expressions (PRX). The following example shows how to use this. data k; a = 'this is a string with some characters'; b = find(a,"str");. The following example shows the differences in the syntax: COMPARE ( string-1, string-2 <, modifiers >) KCOMPARE ( string-1 <, position <, count >>, string-2 ) Examples. Random_word can be 0 to 13 character wide. The FIND function searches string for the first occurrence of the specified substring , and returns the position of that substring. If startpos is not specified, FIND starts the search at the beginning of the string and searches the string from left to right. ) Share Improve this answer Follow. 1 Answer Sorted by: 2 Both FIND and PRXMATCH would work fine, and have no such requirement of hardcoded values. Another way to do is by using Regex and code is given below. Choose appropriate INDEX function to find target strings, individual letters, or strings on word boundaries. If this combination of characters is found, the FIND function returns the position of the first occurrence in the string. Just look at the last two data steps you ran: Data Final; length ReviewText $ 9999;run;data final0; Word = scan (ReviewText,1,'*'); if word in ('pillow' 'pillows') then Pillow=1; set final;run; The first one will make an empty dataset named FINAL with the single character variable named ReviewText. How do you extract this word from your string in SAS? In SAS, you can use the SCAN function to extract a word from a string. Using SAS data step Select values that start with a character string - Adjusting for Different Letter Cases Select values that end with a character string Select values the contain a character string Select values with multiple like conditions 2. In SAS, find function which helps to find the input strings for the first position and occurrence of the specified substring. Sample 2 uses INDEXC to locate the first occurence of any character specified in the excerpt. Controlling Output and Generating Graphics. Compress : Extract Numbers and Text.
3 Functions and CALL Routines ">FIND Function :: SAS(R) 9.
Suppose you wanted to have a text string include the name of a macro function: This is the result of %NRSTR. The length of the string does not change. The find-string argument is a character variable that contains one or more characters that you want to search for. SAS String Function FIND ( ) << Go Back to SAS String Functions As name suggests SAS Find () function is basically used to find if given string in interest is present in the.