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List:       sas-l
Subject:    Re: Data step Do loop to change the value of Macro Variable
From:       xlr82sas <xlr82sas () AOL ! COM>
Date:       2010-02-28 0:25:09
Message-ID: 750c07cd-f96c-4f19-a606-7e607d49bcbb () k6g2000prg ! googlegroups ! com
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On Feb 26, 11:17 pm, kuh...@126.COM (Clark An) wrote:
> I think you are better of learning what the lag&i.(x) means...
> Data step Do loop to change the value of Macro Variable as the topic
> mentioned, I wanna instead the %do loop with data step do loop.
>
> Thank you.

Hi Clark An,

Do whatever you like with the N array. I am not sure you want. I used
I-1.

data mat2345;
  retain n 0;
  array x[2,3,4,5] x1-x120;
  array nx[120] nx1-nx120;
  /* do whatever you want here to define the n's */
  /* I used i-1 but you can do something else    */
  do i=1 to 120;
     n+1;
     nx[i]=i-1;
  end;
  n=1;
  do i=1 to 2;
    do j=1 to 3;
      do k=1 to 4;
        do l=1 to 5;
          x[i,j,k,l]=nx[n];
          n+1;
        end;
      end;
    end;
  end;
  output;
run;

Here is what the output looks like

X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17 X18

 0  1  2  3  4  5  6  7  8  9   10  11  12  13  14  15  16  17
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