有求某一列数据缺失值个数的函数吗？

感谢楼上各位高手。

SAS  functions operate on rows. You can use proc means to have a simple statistics for all USEFUL numerc variables.

data t1;
   r=0.1;
   do i=1 to 100;
      x=rannor(123); x2=(x+r*rannor(123))/sqrt(1+r**2);
          y=0.001+1*x+1*x2>rannor(123);
          if mod(i,5)=0 then x=.;
      else if mod(i,6)=0 then x2=.;
          output;
        end;
run;

proc means data=t1 n nmiss mean std skew kurt;
var _numeric_;
run;

bobguy 发表于 2012-6-1 06:55
SAS  functions operate on rows. You can use proc means to have a simple statistics for all USEFUL nu ...

赞！！！！！

bobguy 发表于 2012-6-1 06:55
SAS  functions operate on rows. You can use proc means to have a simple statistics for all USEFUL nu ...

对啊，直接用proc means的nmiss不是很方便？