Hi, I have a bug report and a question regarding the lumi package. 1. Question: are the annotations, target IDs etc. used in any of the calculations, or are they only provided for descriptive reasons and for downstream analysis? I'm asking because in our workflow we don't read data files using lumiR, and we don't provide annotations - instead we construct LumiBatch objects from matrices of data. 2. Bug report: theoretically, the presence of bead counts and detection p-values in input data files should be optional. However, when one reads the code of function lumiR, it first checks whether they are present but later assumes that they are. A LumiBatch object also cannot be constructed without these values - if I provide NULL instead I get: Error in function (storage.mode = c("lockedEnvironment", "environment", : 'AssayData' elements with invalid dimensions: 'beadNum' 'detection' I think that beadNum and detection should be made fully optional. Best, Michal