Computations of similarity/dissimilarity values seems to low up?
If a cluster analysis results in no structure and the range of similarity values going from 0 to 0 or from 1 to 1 then there may be a problem with the missing value code being set when you did not expect it. Whether or not the missing value code is set is mentioned in the listing output. In NTedit make sure the missing value edit box is blank (not a ‘0’) if there are no missing values in the data.