hiii,
Myself Sneha...
I want to discuss the error am repeatedly getting while running the GCRMA
normalization and cannot solve it.Ihave installed the required HG_U95Av2
probes and CDF packages still it is giving this error.Can u please help me.


> library(gcrma)
> esetGCRMA <- gcrma(rawdata)
Adjusting for optical effect.........Done.
Computing affinitiesError in getProbePackage(probepackagename) :
  The current operation could not access the Bioconductor repository. Please
check your internet connection, and report further problems to
bioconductor@stat.math.ethz.ch

> sessionInfo
function (package = NULL)
{
    z <- list()
    z$R.version <- R.Version()
    z$locale <- Sys.getlocale()
    if (is.null(package)) {
        package <- grep("^package:", search(), value = TRUE)
        keep <- sapply(package, function(x) x == "package:base" ||
            !is.null(attr(as.environment(x), "path")))
        package <- sub("^package:", "", package[keep])
    }
    pkgDesc <- lapply(package, packageDescription)
    if (length(package) == 0)
        stop("no valid packages were specified")
    basePkgs <- sapply(pkgDesc, function(x) !is.null(x$Priority) &&
        x$Priority == "base")
    z$basePkgs <- package[basePkgs]
    if (any(!basePkgs)) {
        z$otherPkgs <- pkgDesc[!basePkgs]
        names(z$otherPkgs) <- package[!basePkgs]
    }
    loadedOnly <- loadedNamespaces()
    loadedOnly <- loadedOnly[!(loadedOnly %in% package)]
    if (length(loadedOnly)) {
        names(loadedOnly) <- loadedOnly
        pkgDesc <- c(pkgDesc, lapply(loadedOnly, packageDescription))
        z$loadedOnly <- pkgDesc[loadedOnly]
    }
    class(z) <- "sessionInfo"
    z
}
<environment: namespace:utils>
>

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