PLOT Subcommand (ANACOR command)

Use PLOT to produce plots of the row scores, column scores, and row and column scores, as well as to produce plots of transformations of the row scores and transformations of the column scores. If PLOT is not specified, plots are produced for the row scores in the first two dimensions and the column scores in the first two dimensions.

The following keywords are available:

TRROWS. Plot of transformations of the row category values into row scores.

TRCOLUMNS. Plot of transformations of the column category values into column scores.

ROWS. Plot of row scores.

COLUMNS. Plot of column scores.

JOINT. A combined plot of the row and column scores. This plot is not available when NORMALIZATION=PRINCIPAL.

NONE. No plots.

DEFAULT. ROWS and COLUMNS.

  • The keywords ROWS, COLUMNS, JOINT, and DEFAULT can be followed by an integer value in parentheses to indicate how many characters of the value label are to be used on the plot. The value can range from 1 to 20; the default is 3. Spaces between words count as characters.
  • TRROWS and TRCOLUMNS plots use the full value labels up to 20 characters.
  • If a label is missing for any value, the actual values are used for all values of that variable.
  • Value labels should be unique.
  • The first letter of a label on a plot marks the place of the actual coordinate. Be careful that multiple-word labels are not interpreted as multiple points on a plot.

In addition to the plot keywords, the following keyword can be specified:

NDIM. Dimension pairs to be plotted. NDIM is followed by a pair of values in parentheses. If NDIM is not specified, plots are produced for dimension 1 by dimension 2.

  • The first value indicates the dimension that is plotted against all higher dimensions. This value can be any integer from 1 to the number of dimensions minus 1.
  • The second value indicates the highest dimension to be used in plotting the dimension pairs. This value can be any integer from 2 to the number of dimensions.
  • Keyword ALL can be used instead of the first value to indicate that all dimensions are paired with higher dimensions.
  • Keyword MAX can be used instead of the second value to indicate that plots should be produced up to, and including, the highest dimension fit by the procedure.

Example

ANACOR TABLE=MENTAL(1,4) BY SES(1,6)
 /PLOT NDIM(1,3) JOINT(5).
  • The NDIM(1,3) specification indicates that plots should be produced for two dimension pairs—dimension 1 versus dimension 2 and dimension 1 versus dimension 3.
  • JOINT requests combined plots of row and column scores. The (5) specification indicates that the first five characters of the value labels are to be used on the plots.

Example

ANACOR TABLE=MENTAL(1,4) BY SES(1,6)
 /PLOT NDIM(ALL,3) JOINT(5).
  • This plot is the same as above except for the ALL specification following NDIM, which indicates that all possible pairs up to the second value should be plotted. Therefore, JOINT plots will be produced for dimension 1 versus dimension 2, dimension 2 versus dimension 3, and dimension 1 versus dimension 3.