INDSCAL - INDividual differences SCALing

compares up to 100 different HAMLET matrices using Carroll and Chang's (1970) Individual Differences Scaling, as an alternative to PINDIS. These should all have been produced using the same search list, and be of the same size, or an error will be indicated and the matrix selected will be ignored.

INDSCAL provides internal metric analysis of a set of dis/similarity matrices in terms of a weighted distance model, such that each "subject" (or text source) has a set of dimensional weights which systematically "distort" the group stimulus space.

• First select a series of matrices by clicking on their names in the file list window. This will add the names of the files selected to the right-hand window. (Note that all windows are resizeable.)
  
• Then click on the Run INDSCAL button to execute the procedure. The results will be displayed in graphic form. It is possible to switch the display between the subject space, representing comparisons between the matrices selected, and the group space, which shows the corresponding search list items as reflected by combining all of the individual matrices.