Hi,
I've looked through the archives to see if this question had been 
raised before, and not finding anything about it, thought I'd ask.

I'm wondering if there is a way to get the phi values returned as 
output when running expresso with the liwong method settings. Phi 
values in the dChip model are the "probe sensitivity index" (PSI).

I know that expresso just returns the summarized expression value for a 
probeset (gene) which is the Theta in the dChip model below:

PM_ij - v_j = Theta_i*phi_j + e
with v_j a background term.

If not expresso, are there other functions or methods that can be 
tweaked to return the PSI values along with the Theta? If anyone has 
tried this before, I'd appreciate your insights.

Thanks,
Hemali

Hemali Patel
Department of Biomedical Engineering
Boston University


	[[alternative text/enriched version deleted]]

