CATS(arg-1,arg-2,...arg-n):连接字符串,删除头尾空白。 CATX('separator-string', arg-1,arg-2,...arg-n):连接字符串,删除头尾空白并用指定标点连接。 COMPRESS(arg, 'char'):移除字符串中的空格和可选字符。 INDEX(arg, 'string') :返回指定字符在变量中的位置。 LEFT(arg) :字符串左对齐。 L...
I have a string variable with varying lengths and values go like this - Var1 1 -1-3 456 -6-7-8 What I am trying to achieve right here is to extract the number along with their signs and create a new variable for each integer. Here is the layout I am hoping to look...
It is best used when we know the exact position of the sub string to extract from a character value. 45. The following data step executes: Data strings; Text1=“MICKEY MOUSE & DONALD DUCK”; Text=scan(text1,2,’&’); Run; What will the value of the variable Text be? * DONALD...
FunctionsThatExtractPartsofStrings43 SUBSTR43 SUBSTRN49 FunctionsThatJoinTwoorMoreStringsTogether51 CALLCATS52CATS57 CALLCATT53CATT58 CALLCATX53CATX59 CAT56 2SASFunctionsbyExample FunctionsThatRemoveBlanksfromStrings61 LEFT61TRIMN66 RIGHT63STRIP68 ...
CHAR - to extract a single character from a text string JustOne = CHAR(String , 5); FIRST – to grab just the first character from a text string Initial = FIRST(name); If you need to strip both leading and trailing blanks from a string, you can skip using the LEFT and TRIM functio...
那么将回归程序写成一个宏，每次用的时候换参数就可以了。 总之，宏可以降低重复性工作的任务量，使程序...
ADO loopis initiated with the variable 'i' iterating from 1 to the number of words in the 'text' variable, separated by commas. This is done using the 'COUNTW' function. Within the loop, the SCAN function is used to extract each word from the 'text' variable based on the current va...
(3)将Excel文件中的变量LABEL转换为SAS 变量label,并去除空格;(4)将Excel中的变量LENGTH转换为SAS变量length,并去除空格;(5)将Excel文件中的变量TYPE转换为SAS变量 type,并将TYPE类型转为SAS专有的”Number“或”Character“两种。(6)创建宏变量keepstring,将所有的variable读取进去,以”|“间隔。 生成数据集EMPTY...
string manipulation task. Regular expressions are especially useful for reading highly unstructured data streams. For example, you may have text and numbers all jumbled up in a data file and you want to extract all of the numbers on each line that contains numbers. Once a pattern is found, ...
It is best used when we know the exact position of the sub string to extract from a character value. 45. The following data step executes: Data strings; Text1 = “MICKEY MOUSE DONALD DUCK”; Text = scan(text1,2,’’); Run; What will the value of the variable Text be? * DONALD ...