When it encounters a DATA, PROC, or RUN statement, SAS stops reading statements and executes the previous step in the program. This program contains one DATA step and two PROC steps, for a total of three program steps. 编译阶段 During the compilation phase, the program data vector is create...
Keep is the keyword and it acts as the SAS statement to write the variables that must be declared already on more than one dataset. It can be called in everywhere and anywhere of SAS datasets, without a keep statement means all the datasets are created under the data step that includes al...
12、sas自动宏变量 &syserr contain the return code from a previously executed step;(202.26) &RC &SYSRC &ERR &SYSERR 分别是什么意思? 13、格式: 14、完整性约束的关键字:CKECK,ensure that a specific set or range of values are the only values in variable...
除了上面提到的一些之外,理解data step是如何运行的,对于学习data step的语句也是十分重要的。 下面介绍过程步,proc step。 首先,proc statement,指出要进行的过程的名字,其中有一个非常重要的选项是data=,这个给出要进行分析的SAS数据集的名字。如果这个选项被忽略了,则这个过程会分析最新产生的数据集。 var语句表明...
data WORK.TOTAL; set WORK.SALARY(keep=Department MonthlyWageRate); by Department; if First.Department=1 then Payroll=0; Payroll+(MonthlyWageRate*12); if Last.Department=1; run; Which statement is true? A. The by statement in the DATA step causes a syntax error. B. The statement Payroll...
data WORK.TOTAL; set WORK.SALARY(keep=Department MonthlyWageRate); by Department; if First.Department=1 then Payroll=0; Payroll+(MonthlyWageRate*12); if Last.Department=1; run; Which statement is true? A. The by statement in the DATA step causes a syntax error. B. The statement Payroll...
The following SAS program is submitted: data WORK.TOTAL; set WORK.SALARY(keep=Department MonthlyWageRate); by Department; if First.Department=1 then Payroll=0; Payroll+(MonthlyWageRate*12); if Last.Department=1; run; Which statem 15、ent is true A. The by statement in the DATA step ...
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dataWORK.TOTAL; setWORK.SALARY(keep=DepartmentMonthlyWageRate); byDepailment; ifFirst.DepartmentalthenPayroll=0; Payroll+(MonthlyWageRate*12); ifLast.Department=l; rnn; Whichstatementistrue? A.ThebystatementintheDATAstepcausesasyntaxeiror. B.ThestatementPayroll+(MonthlyWageRate*12);inthedatastepca...
data WORK.TOTAL; set WORK.SALARY(keep=Department MonthlyWageRate); by Department; if First.Department=1 then Payroll=0; Payroll+(MonthlyWageRate*12); if Last.Department=1; run; Which statement is true? A. The by statement in the DATA step causes a syntax error. B. The statement Payroll...