Dear list
I'm performing some microarrays analysis for a simple case(15 microarrays)
, control(3 microarrays) experiment design.
Don't ask me the reason for which i have a so unbalanced dataset ;-)
In order to detect differentially expressed genes I wish to perform a LIMMA
analysis...but checking the omogeneity of variances with bartlett test I
observ a difference statistically significative between cases and controls.
According to your experience:
Is a good idea before doing a parametric analysis checking the variances
utilizing Bartlett test?
In my case a non parametric test(like SAM) might be better than LIMMA?
thak you for any tips
Best
Guido

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