PLOT Subcommand (FACTOR command)
Use PLOT
to
request scree plots or plots of variables in rotated factor space.
- If
PLOT
is omitted, no plots are produced. IfPLOT
is used without specifications, it is ignored. - If more than one
PLOT
subcommand is specified, only the last one is in effect. - If any
ANALYSIS
subcommand is explicitly specified, allPLOT
subcommands specified before the lastANALYSIS
subcommand are ignored. If noPLOT
subcommand is specified after the lastANALYSIS
subcommand, no plot is produced.
EIGEN. Scree plot 1. The eigenvalues from each extraction are plotted in descending order.
ROTATION. Plots of variables
in factor space. When used without any additional specifications, ROTATION
can produce only high-resolution
graphics. If three or more factors are extracted, a 3-D plot is produced
with the factor space defined by the first three factors. You can
request two-dimensional plots by specifying pairs of factor numbers
in parentheses; for example, PLOT ROTATION(1,2)(1,3)(2,3)
requests three plots, each defined by two factors. The ROTATION
subcommand must be explicitly specified
when you enter the keyword ROTATION
on the PLOT
subcommand.
1
Cattell, R. B. 1966. The scree test for the number of factors. Journal of
Multivariate Behavioral Research, 1, 245-276.