Hi, Sorry for asking a simple question but I cannot find the answer in the archives. I want to know how to 1. Combine two objects of the same class, for example two marrayRaw objects. 2. Add/delete an array/experiment from a marrayRaw/marrayNorm object. Thanks in advance! Best regards, Fai ________ Yuk Fai Leung Bauer Center for Genomics Research Harvard University 7 Divinity Avenue Cambridge, MA 02138 Tel: 617-496-7134 Fax: 617-495-2196 email: <mailto:yfleung@cgr.harvard.edu> yfleung@cgr.harvard.edu; <mailto:yfleung@genomicshome.com> yfleung@genomicshome.com URL: <http: genomicshome.com=""> http://genomicshome.com [[alternative HTML version deleted]]

Hi Yuk Fai, > Sorry for asking a simple question but I cannot find the answer in the > archives. I want to know how to > > 1. Combine two objects of the same class, for example two marrayRaw > objects. Not at the moment > 2. Add/delete an array/experiment from a marrayRaw/marrayNorm object. This can be done by subsetting. e.g. datasub <- data[, -4] data is a marrayRaw object and data sub has slide 4 removed. Cheers Jean