On 11 Aug 2005, yihuan.xu at jefferson.edu wrote:
> Dear Lists:
>
> I was running affy package to analysis my data as following:
>
> eset <- expresso (abexample, normalize.method="quantiles",
> bg.correct = F, pmcorrect.method=NULL,
> summary.method="medianpolish")
>
> I got following error message:
>
> normalization: quantiles PM/MM correction : expression values:
> medianpolish normalizing...done. Error in computeExprSet(afbatch,
> summary.method = summary.method, pmcorrect.method =
> pmcorrect.method, : no direct or inherited method for function
> 'computeExprSet' for this call
>
> What happened here? How to solve it?
Start by having a look at the posting guide. You may be able to find
the problem yourself. If not, the guide will help you post some
additional info that will allow others to have a better chance of
helping you.
In particular: sessionInfo(), traceback()
+ seth
