Cristophe -- 'exprs' is a generic function defined in the Biobase package, but with methods in additional packages in Bioconductor. Mostly exprs is used to extract a matrix of expression-like values from a more complicated data structure, the precise package you need depends on what data object you are starting with..
If you are new to Bioconductor, then please follow the instructions on http://bioconductor.org/download Please ask follow-up questions on the Bioconductor mailing list. Martin Keizer_71 <[EMAIL PROTECTED]> writes: > Hi, > > I am supposed to use exprs as a function. Where can i download exprs > function? I tried searching at bioconductor and seach engine but no luck. Is > it located in one of the library in R? > > thanks. > C > -- > View this message in context: > http://www.nabble.com/exprs-function-download-tp15654560p15654560.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Martin Morgan Computational Biology / Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N. PO Box 19024 Seattle, WA 98109 Location: Arnold Building M2 B169 Phone: (206) 667-2793 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
