PRINT Subcommand (PROXSCAL command)

PRINT specifies the optional output. By default, PROXSCAL displays the stress and fit values for each analysis, the coordinates of the common space, and, with appropriate specification on corresponding subcommands, the individual space weights and transformed independent variables, corresponding regression weights, and correlations.

  • Omitting the PRINT subcommand or specifying PRINT without keywords is equivalent to specifying COMMON, WEIGHTS, and VARIABLES.
  • If a keyword(s) is specified, only the output for that particular keyword(s) is displayed.
  • In the case of duplicate or contradicting keyword specification, the last keyword applies.
  • Inapplicable keywords are silently ignored. That is, specifying a keyword for which no output is available (for example, specifying INDIVIDUAL with only one source) will silently ignore this keyword.

NONE. No output. Display only the normalized raw stress and corresponding fit values.

INPUT. Input data. The display includes the original proximities, and, if present, the data weights, the initial configuration, and the fixed coordinates or the independent variables.

RANDOM. Multiple random starts. Displays the random number seed and stress value of each random start.

HISTORY. History of iterations. Displays the history of iterations of the main algorithm.

STRESS. Stress measures. Displays different stress values. The table contains values for normalized raw stress, Stress-I, Stress-II, S-Stress, dispersion accounted for (D.A.F.), and Tucker’s coefficient of congruence. This is specified by default.

DECOMPOSITION. Decomposition of stress. Displays an object and source decomposition of stress, including row and column totals.

COMMON. Common space. Displays the coordinates of the common space. This is specified by default.

DISTANCES. Distances. Displays the distances between the objects in the configuration.

WEIGHTS. Individual space weights. Displays the individual space weights, only if one of the individual differences models is specified on the MODEL subcommand. Depending on the model, the space weights are decomposed in rotation weights and dimension weights, which are also displayed. This is specified by default.

INDIVIDUAL. Individual spaces. The coordinates of the individual spaces are displayed, only if one of the individual differences models is specified on the MODEL subcommand.

TRANSFORMATION. Transformed proximities. Displays the transformed proximities between the objects in the configuration.

VARIABLES. Independent variables. If VARIABLES was specified on the RESTRICTIONS subcommand, this keyword triggers the display of the transformed independent variables and the corresponding regression weights. This is specified by default.

CORRELATIONS. Correlations. The correlations between the independent variables and the dimensions of the common space are displayed. This is specified by default.

Example 

PROXSCAL VARIABLES=source01 TO source02 
  /TABLE=row_id BY col_id 
  /MODEL=WEIGHTED 
  /PRINT=HISTORY COMMON STRESS.
  • Here, a weighted Euclidean model is specified with two sources.
  • The output consists of the history of iterations of the main algorithm, the coordinates of the common space, the individual space weights, and several measures of fit.