Need help: Grouping Categorical values, finding optimal number of categories and exceptions
Folks, I have a problem that I'm hoping somebody would help me find a solution for, or at least nudge me in a right direction. So, let's say we have N tools. They have multiple atributes, let's say 10. This might be exact model number, color, bells and whistles, modifications etc. They also have hundreds of parameters. Some might be the same across all the tools, some might depend on a combinatio...