在引号中的macro-variable可以是新创建的,也可以是已有的;value是要赋给宏变量的值,可以是变量名,也可以是引号内的常量。 CALL SYMPUT常用于IF-THEN语句中: IF Age>=18 THEN CALL SYMPUT ("status", "Adult"); ELSE CALL SYMPUT ("status","Minor"); Attention:
%macro wrttxt(text=Something we really want to write to the log!); %put text; %mend wrttxt; %wrttxt ; 在日志中的输出结果是text,而不是我们想得到的Something we really want to write to the log!原因是代码中没有在text前加’&’...
Suppose you have a program that yourun once a month.Every time you have to edit the program so it will select data for the correct month and print the correct title. This is time-consuming and prone to errors.You canuse %LET to create a macro variable.Then you can change the value o...
***Temp macro; %macro check_empty_var; %if &nvar. = 0 %then %do; data result; length Dataset $50 empvar $2000; dataset = "CLASS"; empvar = "There is no variable in the dataset Class!"; run; %end; %else %if &nvar. > 0 %then %do; %if &nvar. = 1 %then %do; pro...
MPRINTNESToption允许将宏嵌套信息写入MPRINT输出中的SAS日志。 MLOGICNESTOption允许在SAS日志中的MLOGIC输出中显示宏嵌套信息 一、63题 (63.1) 1、对待加索引的数据集,按索引变量进行排序时,此时排序不会执行,若用FORCE选项,则将删除数据集中的索引。
If corresponding crosswalks exist and the task is to put variable labels into these data sets, then this can be accomplished programmatically with the %LABELME macro. This paper will: 1) summarize the macro specification; 2) examine the design methodology and syntax; and 3) demonstrate how it...
1. With SYMBOLGEN enabled, SAS presenets the results of the resolution of macro variables in the SAS log, it show the value ofbothautomacianduser-defined macro variables. 2. Helps Debug SAS Program and itonly displays macro variable valueswhen they are referenced. ...
(4)列格式输出 PUT [variable][=] [$] startcolumn[-endcolumn] [.decimalplaces]; “=”在输出变量值的同时写上变量的名字及其符号, 其他项的含义见INPUT语句中相应部分。(5)自由格式输出 PUT variable[=] [$]; variable输出变量名,=指定变量值用命名的方式输出,$字符袖量的标志。(6)指定格式输出 PUT ...
setsaslib2.new_orign_dev_variable; wheretype=1; keepname; run; 注:上面代码的功能是取出所有数值型自变量,将自变量的变量名存储在表new_origin_num_var中。 第二部分的代码如下: %macrovar_chi(); %if%sysfunc(exist(saslib2.origin_var_chisq_list)) ne0%then%do; ...
问在带有日期列的sas中读取excel文件EN如果在同一列中有混合的字符和数值，那么SAS将被强制将变量创建为...