wheremacro-variableisthe name of a macro variable,either new or old, and isenclosed in quotes. Valueisthe name of a variablefrom a DATA stepwhose current value you want to assign to that macro variable. CALL SYMPUT 常被用于 IF-THEN statements中,如: IFPlace=1THENCALLSYMPUT("WinningTime",...
You can use theSYMPUT routineto create a macro variable and to assign to that variable any value that is available in the DATA step. When you use the SYMPUT routine to create a macro variable in a DATA step, the macro variable isnot actually created and assigned a valueuntilthe DATA step...
when assign macro variable 06-11-201311:32 AM ( views) | In reply to new You can use the options MPRINTMLOGIC and SYMBOLGEN to debug your macros. In program3 the mainand sub macros generate the following SAS program that contains a syntax : data _null_; var=99; 3; ...
养成代码加注释的习惯,尤其是在代码算法方面。 8.Assign descriptive and meaningful variable names.Besides improving the readability of program code,it serves an important element in the form of documentation. 养成良好的变量命名习惯。选用一目了然的名字,而不是...
Assign Labels Labelvarible='label' first.variable and last.variable Retain 定初始值 Length variable $ num; 最大长度为num if... then... 语法格式 Transpose 倒置,就是row和column互换 proc transposeinput output prefix(default=COLn); byvariable; ...
%* Why? because a macro is not allowed to create a macro variable %* in a local scope above its own. %* (It may however, access any macro variables in scope above itself) %* If this macro implicitly 'creates' a macro variable, it will ...
Changing a variable name is an inevitable fact of programming. There are several ways to accomplish this depending on the types of SAS statements involved. Consider the following SAS code.data one;input x z;y=x+1;cards;1 2 ;The variables acquire their names through the INPUT statement (...
Variable namescan be hard-coded in the template, such as “Height”, “Weight”, or “Age”, as in the SASHELP.CLASS data set. TheSGRENDERprocedure will validate thatvariable namesthat are used in the template are present in the specified data set with compatible types (numeric or character...
| | To define the library for Dictinary tables | | set the macro variable: dictlib | | To select libraries in the query manager tables | | set the macro variable: sellib | || || +---+*/ %let dictlib=Metadata; /* Output library for query manager tables */ %let sellib=('INF...
Another macro discussed enables the programmer to assign the number of observations in a data set to a macro variable. Thismacro variable is useful for determining how many iterations will be executed in the macro loop mentioned above, which eliminates hardcoding the number of iterations in the ...