[BioC] snapCGH question

[Federico Abascal]

Hello,

I am learning about the snapCGH package, and would like to understand
something:
Is it required to have the information about position of the clone in
the array (row and column number) in order to use the snapCGH package? I
guess the bioHMM take this into account, but I am not sure. The aCGH
package does not require this kind of information.

In addition, I will be pleased to know the opinion of some experienced
user, to determine if bioHMM does work better than aCGH in practice.
(in the bioHMM application note no comparison is done)

any help is welcome,
thanks!
Federico