GRESID Subcommand (LOGLINEAR command)

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.