search for: sammoc

...embers, I need an help with the Multidimensional Scaling analysis (MDS). So far I used the cmdscale() command in R, but I did not get the perceptual map I would love to see, and I would like to know if it is possible to get it using R, and if yes how. I also had a look to the functions isoMDS() and sammoc() but with no luck. I summarize the experiment I performed, and I would ask you an help to show me how to analyze in R my results. I simulated 6 surfaces materials at auditory and visual level, and I asked subjects to evaluate on a 9-point Likert scale the degree of coherence between the two stim...