I would like to change the required Bioconductor annotation package in a function, how can I do it? I tried: "my.funct"<-function(gNsel, pValue, mgu74av2){ require(as.environment(mgu74av2)) .... } but it does not work. Any suggestions? Thanks a lot Raffaele -- ---------------------------------------- Prof. Raffaele A. Calogero Bioinformatics and Genomics Unit Dipartimento di Scienze Cliniche e Biologiche c/o Az. Ospedaliera S. Luigi Regione Gonzole 10, Orbassano 10043 Torino tel. ++39 0116705420 Lab. ++39 0116705408 Fax ++39 0119038639 Mobile ++39 3333827080 email: raffaele.calogero@unito.it www: www.bioinformatica.unito.it

Try removing the as.environment(). Since the mgu74av2 package when loaded *is* an environment, I don't know that you will ever need the call to as.environment(). You might also add a quietly = TRUE to your call to require(), so you don't echo the fact that you loaded the package. HTH, Jim James W. MacDonald Affymetrix and cDNA Microarray Core University of Michigan Cancer Center 1500 E. Medical Center Drive 7410 CCGC Ann Arbor MI 48109 734-647-5623 >>> Raffaele Calogero <raffaele.calogero@unito.it> 05/24/05 8:10 AM >>> I would like to change the required Bioconductor annotation package in a function, how can I do it? I tried: "my.funct"<-function(gNsel, pValue, mgu74av2){ require(as.environment(mgu74av2)) .... } but it does not work. Any suggestions? Thanks a lot Raffaele -- ---------------------------------------- Prof. Raffaele A. Calogero Bioinformatics and Genomics Unit Dipartimento di Scienze Cliniche e Biologiche c/o Az. Ospedaliera S. Luigi Regione Gonzole 10, Orbassano 10043 Torino tel. ++39 0116705420 Lab. ++39 0116705408 Fax ++39 0119038639 Mobile ++39 3333827080 email: raffaele.calogero@unito.it www: www.bioinformatica.unito.it _______________________________________________ Bioconductor mailing list Bioconductor@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/bioconductor ********************************************************** Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues.