data work.getobs5(drop=obsnum); obsnum=5; set company.usa(keep=manager payroll) point=obsnum; output; stop; run; proc print data=work.getobs5 noobs; run;请问各位高手:为啥要drop掉obsnum?obsnum会出现在getobs5这个数据集中吗?我试着运行了一下这个程序,sas提示错误:WARNING: The variable obsnum in the DROP, KEEP, or RENAME list has never been referenced.
请各位帮小弟解决一下~~不甚感激!!!!!



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