[BioC] combineAffyBatch problem

Wolfgang Huber huber at ebi.ac.uk
Tue Aug 8 20:39:56 CEST 2006

Dear Catherine

it is feasible to do this, you will have to modify the combineAffyBatch 
function to do this (do you know how to find its source code?). If you 
like, your modifications would be welcome to be fed back into the package.

  Best wishes

Wolfgang Huber  EBI/EMBL  Cambridge UK  http://www.ebi.ac.uk/huber

> I am using the combineAffyBatch function from the matchprobes package 
> regularly now, and I am very pleased with its performance.
> However, I was wondering if you can help me with the following:
> I understand that every time I run the function, a new .CDF object is 
> created and this takes a considerable amount of time. I was wondering if 
> we can re-use an existing "newcdf" object when performing new analysis 
> where the same two types of arrays are used. In other words, since I am 
> always combining the same 2 types Affy chips, the newcdf object should 
> be the same. If I use that object from previous sessions, I shouldn't be 
> creating a new one every time.
> I would greatly appreciate it if you could tell me if that is feasible, 
> and if it is, how can I  do it.
> Thank you very much for your attention to this issue.
> Cathy

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