SPSS® 12.0 Command Syntax Reference

822 LOGLINEAR
• CWEIGHT imposes structural zeros on the diagonal of the symmetric crosstabulation.
Because a variable name is specified, only one CWEIGHT can be used.
Example
LOGLINEAR HUSED WIFED(1,4) WITH DISTANCE
/CWEIGHT=(0, 4*1, 0, 4*1, 0, 4*1, 0)
/DESIGN=HUSED WIFED DISTANCE
/CWEIGHT=(16*1)
/DESIGN=HUSED WIFED DISTANCE.
• The first CWEIGHT matrix specifies the same values as variable CWT provided in the first
example. The specified matrix is as follows:
0 1 1 1
1 0 1 1
1 1 0 1
1 1 1 0
• The same matrix can be specified in full as (0 1 1 1 1 0 1 1 1 1 0 1 1 1 1 0).
• By using the matrix format on CWEIGHT rather than a variable name, a different
CWEIGHT subcommand can be used for the second model.
GRESID Subcommand
GRESID (Generalized Residual) calculates linear combinations of observed cell frequencies,
expected cell frequencies, and adjusted residuals.
• The specification is either a numeric variable or a matrix whose contents are coefficients
of the desired linear combinations.
• If a matrix of coefficients is specified, the matrix must contain the same number of elements
as the number of cells implied by the variables specification. An asterisk can be
used to signify repetitions of the same value.
• Each GRESID subcommand specifies a single linear combination. Each matrix or variable
must be specified on a separate GRESID subcommand. All GRESID subcommands specified
are displayed for each design.
Example
LOGLINEAR MONTH(1,18) WITH Z
/GRESID=(6*1,12*0)
/GRESID=(6*0,6*1,6*0)
/GRESID=(12*0,6*1)
/DESIGN=Z.
• The first GRESID subcommand combines the first six months into a single effect. The
second GRESID subcommand combines the second six months, and the third GRESID subcommand
combines the last six months.
• For each effect, LOGLINEAR displays the observed and expected counts, the residual, and
the adjusted residual.