3) 因为%STR的作用发生在编译期间,所以它往往用来屏蔽一个常字符串(constant string)。类似于%str(&a)的写法其实没有太大的意义: %macro test(val); %let a= %str(&val); data _null_; set sashelp.vmacro; if name = 'A' then put value $hex10.; run; %mend test;
verify的语法:verify(source, chkstring1[, chkstring2, … , chkstringn]) (参考文献:http://blog.chinaunix.net/u/6776/showart_1073354.html) TRIM(s) 返回去掉字符串s的尾随空格的结果。 MISSING:可用于字符型和数字型变量,当变量为空时,返回1,...
因此在%let word=%qscan(&string,&i,' '); 这一句中,最后面的' '被当作了’’和空格两个分隔符,这样,无论是’或是空格都可以分隔原来的字符串,因此产生了如上的输出结果。解决方案跟IF一样,如下: %macro breakstrg(string=); %let i=1;...
It is similar to AE start date imputation, only difference is imputation is done to last day or last month instead of start of day or month. Ifdayis missing, then it will be imputed to either 30 or 31. if it is feb month then 28 or 29 Imputation flag is added with values as ‘D...
2.创建两个东西,一个新的空的数据集(EMPTY_DM)和一个全局变量DMKEEPSTRING EMPTY_DM:先将原始数据和dm叠加,然后通过codelist里面的格式对原始数据进行转换 DMKEEPSTRING是新的DM所有变量的名称,保留这些变量 TOC_METADATA ---DOMAINKEYS---make_sort_order ---DM.SORTSTRING merge中的...
TheFORMATS=stringisnotcheckedforvalidity.Whenavariableisaddedto anoutputdataset,thesystemsearchestheFORMATS=stringforanassignmentof aformattothatvariable.Ifavalidformatassignmentforthevariableisfound,that formatisassignedtothevariableintheoutputdataset.ThedefaultisFORMATS=. Thismeansthatnoformatsareassignedtospeci...
Check if first character in the string can be numeric, then convert them Posted 05-20-2021 04:46 AM (1631 views) I have 2 strings string 1 = '1st' and string 2 = 'Super' I want to have new variable to check if the first character is numeric then convert to num...
The SAS type (char/numeric) of the values is determined according to a set of rules: If the values are numeric, the SAS type is numeric If the values are all string, the SAS type is character If the values contain a single character (a-Z + underscore + .) AND a numeric, then the...
438 Adding Titles Chapter 3 Any time you use a character string for a constant value in a WHERE or BY clause, you need to make sure you use the exact case of the character string in the table. If the word ranch had been in lowercase in the HOUSES table, you would type ranch. 7 ...
Unless otherwise notedR/all.is.numeric.RR/importConvertDateTime.RR/in.opererator.RR/makeNames.RR/read.xport.RJr.src/SASxport.csrc/SASxport.h