SPSS随机化分组编程

SPSS随机化分组编程

1.完全随机设计分组SPSS编程

set seed=12345.

input program.

loop number=1 to 120.

compute random=uniform(120).

end case.

end loop.

end file.

end input program.

autorecode variables=random/into rank.

sort cases by rank(A).

recode rank(1 thru 30=1)(31 thru 60=2)(61 thru 90=3)(91 thru 120=4)into group.

execute.

2.随机区组设计分组的SPSS编程

set seed=???.

input program.

loop number=1 to n.

compute block=rnd((number-1)/K+0.5).

end case.

end loop.

end file.