Weird, I guess it needs to be logged in or something. I don't know if the
issue is that its in a non-master branch or waht. The repo is fully public
and the forCRAN_0.3.5 in  branch definitely exists on github.

I started chrome (where I'm not logged into github) and got the same 404
error but after navigating to the file by going to the repo and changing
the branch and navigating to the file, it now works even when i quit chrome
and restart it. I don't know if it needed me to do that or if there was an
intermittent problem that is now fixed.

Anyway, here is the raw code, the link for which seems to work (in a
browser where I'm not logged into github). If it still doesn't I can just
attach the file here if you want. It doesn't rely on any of the rest of the
CodeDepends machinery.

https://raw.github.com/duncantl/CodeDepends/forCRAN_0.3.5/R/librarySymbols.R


~G


On Mon, Nov 4, 2013 at 11:34 AM, Michael Lawrence <lawrence.mich...@gene.com
> wrote:

> The dynamic nature of R limits the extent of these checks. But as Ryan has
> noted, a simple sanity check goes a long way. If what he has done could be
> extended to the rest of the search path (people always forget to attach
> packages), I think we've hit the 80% with 20%. Got a 404 on that URL btw.
>
> Michael
>
>
> On Mon, Nov 4, 2013 at 11:05 AM, Gabriel Becker <gmbec...@ucdavis.edu>wrote:
>
>> Hey guys,
>>
>> Here is code that I have written which resolves library names into a full
>> list of symbols:
>>
>> https://github.com/duncantl/CodeDepends/blob/forCRAN_0.3.5/R/librarySymbols.RNote
>> this does not require that the packages actually be loaded at the time
>> of the check, and does not load them (or rather, it loads them but does
>> not
>> attach them, so no searchpath muddying occurs). You do need a list of
>> packages to check though (it adds the base ones automatically). It handles
>> dependency and could be easily extended to handle suggests as well I
>> think.
>>
>> When CodeDepends gets pushed to cran (not my call and not high on my
>> priority list to push for currently) it will actually do exactly what you
>> want. (the forCRAN_0.3.5 branch already does and I believe it is
>> documented, so you could use devtools to install it now).
>>
>> As a side note, I'm not sure that existence of a symbol is sufficient (it
>> certainly is necessary). What about situations where the symbol exists but
>> is stale compared to the value in the parent? Are we sure that can never
>> happen?
>>
>> ~G
>>
>>
>> On Mon, Nov 4, 2013 at 7:29 AM, Michel Lang <michell...@gmail.com> wrote:
>>
>> > You might want to consider using Recall() for recursion which should
>> solve
>> > this. Determining the required variables using heuristics as codetools
>> will
>> > probably lead to some confusion when using functions which include calls
>> > to, e.g., with():
>> >
>> > f = function() {
>> >   with(iris, Sepal.Length + Sepal.Width)
>> > }
>> > codetools:::findGlobals(f)
>> >
>> > I would suggest to write up some documentation on what the function's
>> > environment contains and how to to define variables accordingly - or
>> why it
>> > can generally be considered a good idea to pass everything essential as
>> an
>> > argument. Nevertheless a "bpExport" function would be a good addition
>> for
>> > some rare corner cases in my opinion.
>> >
>> > Michel
>> >
>> >
>> > 2013/11/3 Henrik Bengtsson <h...@biostat.ucsf.edu>
>> >
>> > > Hi,
>> > >
>> > > in BiocParallel, is there a suggested (or planned) best standards for
>> > > making *locally* assigned variables (e.g. functions) available to the
>> > > applied function when it runs in a separate R process (which will be
>> > > the most common use case)?  I understand that avoid local variables
>> > > should be avoided and it's preferred to put as mush as possible in
>> > > packages, but that's not always possible or very convenient.
>> > >
>> > > EXAMPLE:
>> > >
>> > > library('BiocParallel')
>> > > library('BatchJobs')
>> > >
>> > > # Here I pick a recursive functions to make the problem a bit harder,
>> > i.e.
>> > > # the function needs to call itself ("itself" = see below)
>> > > fib <- function(n=0) {
>> > >   if (n < 0) stop("Invalid 'n': ", n)
>> > >   if (n == 0 || n == 1) return(1)
>> > >   fib(n-2) + fib(n-1)
>> > > }
>> > >
>> > > # Executing in the current R session
>> > > cluster.functions <- makeClusterFunctionsInteractive()
>> > > bpParams <- BatchJobsParam(cluster.functions=cluster.functions)
>> > > register(bpParams)
>> > > values <- bplapply(0:9, FUN=fib)
>> > > ## SubmitJobs |++++++++++++++++++++++++++++++++++| 100% (00:00:00)
>> > > ## Waiting [S:0 R:0 D:10 E:0] |+++++++++++++++++++| 100% (00:00:00)
>> > >
>> > >
>> > > # Executing in a separate R process, where fib() is not defined
>> > > # (not specific to BiocParallel)
>> > > cluster.functions <- makeClusterFunctionsLocal()
>> > > bpParams <- BatchJobsParam(cluster.functions=cluster.functions)
>> > > register(bpParams)
>> > > values <- bplapply(0:9, FUN=fib)
>> > > ## SubmitJobs |++++++++++++++++++++++++++++++++++| 100% (00:00:00)
>> > > ## Waiting [S:0 R:0 D:10 E:0] |+++++++++++++++++++| 100% (00:00:00)
>> > > Error in LastError$store(results = results, is.error = !ok,
>> throw.error =
>> > > TRUE)
>> > > :
>> > >   Errors occurred during execution. First error message:
>> > > Error in FUN(...): could not find function "fib"
>> > > [...]
>> > >
>> > >
>> > > # The following illustrates that the solution is not always
>> > > straightforward.
>> > > # (not specific to BiocParallel; must have been discussed previously)
>> > > values <- bplapply(0:9, FUN=function(n, fib) {
>> > >   fib(n)
>> > > }, fib=fib)
>> > > Error in LastError$store(results = results, is.error = !ok,
>> > > throw.error = TRUE) :
>> > >   Errors occurred during execution. First error message:
>> > > Error in fib(n): could not find function "fib"
>> > > [...]
>> > >
>> > > # Workaround; make fib() aware of itself
>> > > # (this is something the user need to do, and would be very
>> > > #  hard for BiocParallel et al. to automate.  BTW, should all
>> > > #  recursive functions be implemented this way?).
>> > > fib <- function(n=0) {
>> > >   if (n < 0) stop("Invalid 'n': ", n)
>> > >   if (n == 0 || n == 1) return(1)
>> > >   fib <- sys.function() # Make function aware of itself
>> > >   fib(n-2) + fib(n-1)
>> > > }
>> > > values <- bplapply(0:9, FUN=function(n, fib) {
>> > >   fib(n)
>> > > }, fib=fib)
>> > >
>> > >
>> > > WISHLIST:
>> > > Considering the above recursive issue solved, a slightly more explicit
>> > > and standardized solution is then:
>> > >
>> > > values <- bplapply(0:9, FUN=function(n, BPGLOBALS=NULL) {
>> > >   for (name in names(BPGLOBALS)) assign(name, BPGLOBALS[[name]])
>> > >   fib(n)
>> > > }, BPGLOBALS=list(fib=fib))
>> > >
>> > > Could the above be generalized into something as neat as:
>> > >
>> > > bpExport("fib")
>> > > values <- bplapply(0:9, FUN=function(n) {
>> > >   BiocParallel::bpImport("fib")
>> > >   fib(n)
>> > > })
>> > >
>> > > or ideally just (analogously to parallel::clusterExport()):
>> > >
>> > > bpExport("fib")
>> > > values <- bplapply(0:9, FUN=fib)
>> > >
>> > > /Henrik
>> > >
>> > > _______________________________________________
>> > > Bioc-devel@r-project.org mailing list
>> > > https://stat.ethz.ch/mailman/listinfo/bioc-devel
>> > >
>> >
>> >         [[alternative HTML version deleted]]
>> >
>> > _______________________________________________
>> > Bioc-devel@r-project.org mailing list
>> > https://stat.ethz.ch/mailman/listinfo/bioc-devel
>> >
>>
>>
>>
>> --
>> Gabriel Becker
>> Graduate Student
>> Statistics Department
>> University of California, Davis
>>
>>         [[alternative HTML version deleted]]
>>
>> _______________________________________________
>> Bioc-devel@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/bioc-devel
>>
>
>


-- 
Gabriel Becker
Graduate Student
Statistics Department
University of California, Davis

        [[alternative HTML version deleted]]

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