Hello Seth, I was trying to use writeChrLength in AnnBuilder package like follows: > library("annotate") > library("geneplotter") > library("AnnBuilder") > library(zebrafish) > path <- file.path(.path.package("zebrafish")) > writeChrLength("zebrafish","/usr/local/lib/R/site-library/", zebrafishCHRLENGTHS) > new<-buildChromLocation("zebrafish") But still I got the error: Error in get(x, envir, mode, inherits) : variable "zebrafishCHRLENGTHS" was not found my zebrafishCHRLENGTHS variable is the same type as hgu95av2CHRLENGTHS. and there is a zebrafishCHRLENGTHS.rda file in /usr/local/lib/R/site-library/zebrafish/data directory after writeChrLength command. What is wrong? Regards, Yanju Seth Falcon wrote: > yanju <yanju at="" liacs.nl=""> writes: > > >> Dear all, >> >> I was trying to visualize genes in each chromosomes in Zebrafish. I >> found how people visualize them in Human species using geneplotter. Then >> I tried followings: >> >> > library("annotate") >> > library("geneplotter") >> > library(zebrafish) >> > newChrom<-buildChromLocation("zebrafish") >> >> then I got a error: >> Error in get(x, envir, mode, inherits) : variable "zebrafishCHRLENGTHS" >> was not found >> >> There is no zebrafishCHRLENGTHS variable which record the length of each >> chromosome in Zebrafish. What should I do? >> > > At present, AnnBuilder only produces the CHRLENGTHS map for humna, > mouse, and rat platforms. We hope to increase the coverage in the > next release. One solution would be to use the UCSC Genome Browser to > determine the lengths and create a map object with the appropriate > name. > > + seth > >