proper distance in cluster with factor variable


New Member
Dear colleagues.
I have a group of variables, all of them evaluated from 1 to 5. I want to group the samples with cluster analysis. From different trials I have selected a cosine distance and a pairs group algorithm. I need to be sure that there is not a mathematical constrain in using these specification with a dataset in wich all variables are 1 to 5. I have been looking on bibliogrpahy related to the characteristiques of the distances measurementes without succes.
So my questions are:
- Is thare any contrain?
- Is there any bilbio I could refer in case I got any critic on that?

All the best.