| SCOREPLOT Statement |
- SCOREPLOT < / options> ;
The SCOREPLOT statement produces score plots for a Phase II analysis. The SCOREPLOT statement is available only when the input data set is specified with the DATA= option. A score plot is a scatter plot of the scores that are associated with a pair of principal components. You can specify any number of SCOREPLOT statements in the MVPMONITOR procedure.
You can specify the following options after a slash (/):
- ALPHA=value
specifies the
value for a prediction ellipse that is overlaid on the score plot. If you specify the ALPHA= option, you do not need to specify the ELLIPSE option. The default value is 0.05. - ELLIPSE
requests that a prediction ellipse be overlaid on the principal component score plot. The probability that a new observation falls outside the ellipse is specified by the ALPHA= option, and this probability is 0.05 by default.
- GROUP=variable
specifies a variable in the input data set that is used to group the points on the score plots. Points with different GROUP= values are plotted using different markers or colors (or both) to distinguish the groups.
- NOLABELS
suppresses labels for the points on the score plots. By default, points are labeled with the values of the first variable listed in the ID statement, or the observation number if no ID statement is specified.
- XCOMP=x
specifies an integer x that identifies the principal component whose scores are plotted on the X axis of the score plot. If no XCOMP= value is specified, then x=1 by default. You cannot specify the same principal component number for both the XCOMP= and YCOMP= options.
- YCOMP=y
specifies an integer y that identifies the principal component whose scores are plotted on the Y axis of the score plot. If no YCOMP= value is specified, then y=x+1 unless x
(the last principal component in the model), in which case y
. You cannot specify the same principal component number for both the XCOMP= and YCOMP= options.
Note: This procedure is experimental.