&sysindex : Contains the number of macros that have started execution in the current SAS job or session. You can use SYSINDEX in a program that uses macros when you need a unique number that changes after each macro invocation. 当宏调用时,会自动产生这个变量,&sysindex的值在调用不同宏时都...
Debugging SAS ® code in a macrodata two;set one;array xall x1-x3;do i=1 to 3;xall(i) = xall(i) + 100;end;do i=1 to 4;xall(i) = xall(i) + 1000;end; run;Bruce GilsenFederal Reserve BoardWashington
深入解析SAS:宏编程(条件语句、循环语句) 一、宏概述 个人理解macro这个是面向过程的SAS语言面向对象编程的一小步。有一点点类似于R语言中的function函数,或者python中的自定义class,为了提高编程效率,macro是不得不学习的内容。 宏和宏变量SAS宏代码包括两个基本部分:宏命令和宏变量。宏变量通常加一个“&”作为前缀...
SAS宏变量作用范围只有有两种,一种是全局的(global),另一种是局部的(local)。全局的宏变量一旦声明或者定义之后,可以在当前SAS Session的任何地方,不管是open code还是macro当中访问,而局部变量则只能在特定的范围内访问。 1) 任何在open code当中定义的宏变量一律都是全局的,不管定义的方式是通过%let语句,还是通过...
I take great effort to make my code readable, but when programs with imbedded macro programs are executed the macro code in the SAS log is all over the place. Is there any way to retain the original format to make it more easily readable? Thanks in advance.0...
Finally, one more PERL program will be demonstrated that transforms standard SAS code into SAS Macro code. In the end, you will have a scheduling macro which makes calls to other macros depending on the date. The macros that are called by the scheduling macro may have already bee...
in JCL SYSPROD indicates whether a SAS product is licensed SYSPBUFF all macro parameters passed SYSRC return code from macro processor SYSSCP operating system where SAS is running SYSTIME starting time of job SYSVER SAS version Example: FOOTNOTE THIS REPORT WAS RUN ON SYSDAY, SYSDATE; Resolves...
1. As a macro function, youdo not need to enclose character values in quotation marksas you do in DATA step functions. One way in which macro language is different from SAS language isMacro-variable values are always text, quotation marks are not needed to indicate texr constants in the ma...
Basically, I wanna keep the first piece of code whether I determine the list, but then in the DATA step, how can I go around an empty macro? I have several macro variables within that DATA STEP, but when SAS detects an empty macro, it gave me error and does not process the rest of...
Introduction The Macro Language serves as an extension to the SAS System for the purpose of generating text in the form of SAS code, including partial and/or complete statements, DATA steps, PROC steps, variables, text strings, functions, informats, formats, expressions, comparison and logical ...