Thanks!!!! it works!!!! Thank you thank you Claudia Ting-Yuan Liu wrote: >Hi Claudia, > >Try this: > library(annaffy) > library(pkg, character.only = TRUE) > x<-paste(pkg,"SYMBOL",sep="") > y <- get(x) > is.environment(y) > [1] TRUE > probeids <- ls(y) > >HTH, >Ting-Yuan > >______________________________________ >Ting-Yuan Liu >Program in Computational Biology >Division of Public Health Sciences >Fred Hutchinson Cancer Research Center >Seattle, WA, USA >______________________________________ > >On Tue, 27 Dec 2005, Claudia Molina wrote: > > > >>Hello and merry christmas! >> >>I'm trying to make automatically these commands >> library(annaffy) >> library(moe430a) >> probeids <- ls(moe430aSYMBOL) >> probeids[1:2] >> >>*If I write the below script, everything is allrigth: >> x<-moe430aSYMBOL >> is.environment(x) #check that "x" object is an environment >> [1] TRUE >> probeids <- ls(x) #store probe names of "moe430a" in probeids >>object >> >>*but if I write: >> library(annaffy) >> library(pkg, character.only = TRUE) >> x<-paste(pkg,"SYMBOL",sep="") >> is.environment(x) >> [1] FALSE >> probeids <- ls(x) >> >>where "pkg" is "moe430a" >> >>appears the next message: >> << Error in as.environment(pos) : no item called "moe430aSYMBOL" in >>the search list >> >> >> >>*I have also tried >> probeids <- objects(paste(pkg,"SYMBOL",sep="")) >> << Error in as.environment(pos) : no item called >>"moe430aSYMBOL" in the search list >> >>and >> x<-paste(pkg,"SYMBOL",sep="") >> as.environment(x) >> << Error in as.environment(x) : no item called >>"moe430aSYMBOL" in the search list >> >> >>but they don't work and I need all the commands are automatic (I can't >>write "x<-moe430aSYMBOL" because my script is inside another and I won't >>know the name of the package 'a priori') >> >>Thanks!!! >> >>Claudia >> >>_______________________________________________ >>Bioconductor mailing list >>Bioconductor at stat.math.ethz.ch >>https://stat.ethz.ch/mailman/listinfo/bioconductor >> >> >> > > >