例如，使用%QSCAN函数来提取字符串中的特定元素。与%SCAN函数相比，%QSCAN函数能够更好地处理包含特殊字符的字符串，例如&和%等Macro Trigger。通过使用%QSCAN函数，我们可以更准确地提取所需的数据元素。在示例程序三中，%QUPCASE函数允许我们在返回的结果中隐藏特殊字符功能：*Function:%UPC
Reference :%SYSFUNC and %QSYSFUNC Functions :: SAS(R) 9.3 Macro Language: Reference 3. %scan 和 %qscan %SCAN(argument, n<,charlist<,modifiers>>)%QSCAN(argument, n<,charlist<,modifiers>>) 这两个函数的作用是:在一个字符串中根据某个词所在的位置查找该词,每个词由分隔符分隔。 %SCAN 无法掩...
单个的scan循环 2.伪宏 %include:等价与把%include的文件直接复制到本文件。 3.两种宏 可以暂时成为macro program和macro function 4.macro program 1.定义 A macro is a larger piece of a program that may contain complex logic including complete DATA and PROC steps and macro statements such as %DO, ...
语法格式: %sysfunc(function(argument(s)<,format>)) 其中,function是所有可用的SAS函数,除了表1之外。常见的SAS函数如表2。 计算函数 宏计算函数有两种: %eval函数:计算算术和逻辑表达式(整数格式)。 %sysevalf函数:计算算数和逻辑表达式(浮点格式)。 示例: 字符函数 常见的字符函数如表3: 示例4:%scan和%qs...
Quoting Function主要是用于屏蔽一些字符的特定功能,将其作为普通的字符来对待。例如:运算符、比较符、操作符等,还有两个Macro Trigger:%,& 这部分共包含有12个函数,分别是:%STR、%NRSTR、%QUOTE、%NRQUOTE、%BQUOTE、%NRBQUOTE、%SUPERQ、%UNQUOTE、%QSAN、%QSUBSTR、%QSYSFUNC、%QUPCASE。
word[i] = scan(text, i, ','); end; drop i; proc print; run; Explanation First we count the number of words in the variable "text" using thecountwfunction, with the delimiter as a comma (","). Thecall symputxstatement was used to create a macro variable named "nWords" and assi...
REPEAT Function Returns a character value that consists of the first argument repeated n+1 times. REVERSE Function Reverses a character string. RIGHT Function Right aligns a character expression. SCAN Function Returns the nth word from a character string. ...
(distinct upper_branch_id) into: branch_count from tmp1; quit; /*拆分成不同的分支行*/ %macro funcl; %do i=1 %to &branch_count.; proc sql; create table specloan_&i. as select * from tmp1 where upper_branch_id="%scan(&branch_list.,&i.,' ')"; quit; %end; %mend; %funcl...
%macro bighouse(Pet=Cat Dog, Type=Fat Fuzzy, Npets=2, Ntypes=2); %do i=1 %to &npets; %do j=1 %to &ntypes; %let allpets=%scan(&type,&i) %scan(&pet,&j); %put &allpets; %end; %end; %mend bighouse; %bigho...
Use a %DO %UNTIL loop and the %SCAN macro function to generate a report for each year in the list. here is the code I have executed that is giving an error message (shown below the code): %macro storms(year);%let i=1;%let yr=%scan(&year, &i);%do %Unti...