data prg6_2;
do a=1 to 5;
  do b=1 to 3;
    input x @@;
    output;
  end;
end;
cards;
0.82 0.65 0.51
0.73 0.54 0.23
0.43 0.34 0.28
0.41 0.21 0.31
0.68 0.43 0.24
;
proc anova;
  class a b;
  model x=a b;
  means b/snk;
run;
错误
NOTE: Copyright (c) 1999-2000 by SAS Institute Inc., Cary, NC, USA.
NOTE: SAS (r) Proprietary Software Release 8.1 (TS1M0)
      Licensed to LOUISIANA STATE UNIVERSITY, Site 0009396001.
NOTE: This session is executing on the WIN_PRO  platform.



ERROR: Permanent copy of file WORK._tf0001.ITEMSTOR was deleted.
ERROR: File WORK._tf0001.ITEMSTOR is not open.
ERROR: File WORK._tf0001.ITEMSTOR is not open.
NOTE: SAS initialization used:
      real time           0.94 seconds
      cpu time            0.48 seconds

1    data prg6_2;
2     do a=1 to 5;
3      do b=1 to 3;
4        input x @@;
5        output;
6      end;
7    end;
8    cards;

NOTE: SAS went to a new line when INPUT statement reached past the end of a line.
NOTE: The data set WORK.PRG6_2 has 15 observations and 3 variables.
ERROR: Rename of temporary member for WORK.PRG6_2.DATA failed.
File may be found in C:\Program Files\SAS Institute\TEMP\SAS Temporary Files\_TD21032
.
NOTE: DATA statement used:
      real time           0.01 seconds
      cpu time            0.01 seconds

14   ;


15   proc anova;
ERROR: There is not a default input data set (_LAST_ is _NULL_).
16     class a b;
17     model x=a b;
ERROR: No data set open to look up variables.
NOTE: The previous statement has been deleted.
18     means b/snk;
19   run;

ERROR: A MODEL statement must be given.