Aggita <a.strelniece <at> eurotransplant.org> writes:
>
> > chooseCRANmirror()
> Error in m[, 1L] : incorrect number of dimensions
>
> Can someone explain me why I can't choose the cran mirror, but get again and
> again this error message. Have searched for this on several engines but
> can't find explanation.
>
It's hard for us to diagnose this if we can't reproduce it.
I will take a shot though.
The chooseCRANmirror function looks like this:
function (graphics = getOption("menu.graphics"))
{
if (!interactive())
stop("cannot choose a CRAN mirror non-interactively")
m <- getCRANmirrors(all = FALSE, local.only = FALSE)
res <- menu(m[, 1L], graphics, "CRAN mirror")
if (res > 0L) {
URL <- m[res, "URL"]
repos <- getOption("repos")
repos["CRAN"] <- gsub("/$", "", URL[1L])
options(repos = repos)
}
invisible()
}
Looking in the guts of the function, it is clear that
it is failing when it looks at the list of mirrors that
it has gotten -- this list of mirrors has somehow turned
into a vector instead of a matrix.
You could use debug(chooseCRANmirror) to step through the
function and inspect the value of m just before the function
crashes.
This is probably the result of some sort of network problem --
you're not getting a decent list of mirrors. What is the
result of
str(getCRANmirrors(all=FALSE,local.only=FALSE))
?
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