SPSS® 12.0 Command Syntax Reference

MATRIX DATA 969
• SPLIT can specify a subset of up to eight of the variables named on VARIABLES. All split
variables must be numeric. The keyword TO can be used to imply variables in the order
in which they are named on VARIABLES.
• A separate matrix must be included in the data for each value of each split variable.
MATRIX DATA generates a complete set of matrix materials for each.
• If the data contain neither ROWTYPE_ nor split-file variables, a single split-file variable
can be specified on SPLIT. This variable is not specified on the VARIABLES subcommand.
MATRIX DATA generates a complete set of matrix materials for each set of matrix
materials in the data and assigns values 1, 2, 3, etc., to the split variable until the end of
the data is encountered.
Example
MATRIX DATA VARIABLES=S1 ROWTYPE_ V1 TO V3 /SPLIT=S1.
BEGIN DATA
0 MEAN 5 4 3
0 SD 1 2 3
0 N 9 9 9
0 CORR 1
0 CORR .6 1
0 CORR .7 .8 1
1 MEAN 9 8 7
1 SD 5 6 7
1 N 9 9 9
1 CORR 1
1 CORR .4 1
1 CORR .3 .2 1
END DATA.
LIST.
• The split variable S1 has two values: 0 and 1. Two separate matrices are entered in the
data, one for each value S1.
• S1 must be specified on both VARIABLES and SPLIT.
Example
MATRIX DATA VARIABLES=V1 TO V3 /CONTENTS=MEAN SD N CORR
/SPLIT=SPL.
BEGIN DATA
5 4 3
1 2 3
9 9 9
1
.6 1
.7 .8 1
9 8 7
5 6 7
9 9 9
1
.4 1
.3 .2 1
END DATA.
LIST.