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comment Create R Windows Binary from .tar.gz linux
For example, Jeffrey Horner no longer maintains Windows binaries of RMySQL, but when I compile from source on my own Windows box, it works just fine...
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comment Create R Windows Binary from .tar.gz linux
@BenBolker -- Agreed. I just came back here to note +/- the same thing (although I've got limited experience of whether compiled packages can fail some of CRAN's checks, but still be practically useful). Do you happen to know what r-oldrel-windows-ix86+x86_64 (one of the architectures referenced on bigmemory's check results page) is, and how it differs from r-release-windows-ix86+x86_64 included (e.g.) here?
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answered Create R Windows Binary from .tar.gz linux
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comment logical test if object is a directory
@TylerRinker -- Glad that helped. Rather than trying to memorize all of R's file-related functions, I often find myself doing apropos("^file"). It misses some, but gives a good starting list ;)
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revised The arcane formals(function(x){})$x
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revised The arcane formals(function(x){})$x
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revised The arcane formals(function(x){})$x
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answered The arcane formals(function(x){})$x
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comment logical test if object is a directory
As for how file.info really works, that's in the C function called by .Internal(file.info), do_fileinfo -- but I'm guessing (?) that that's not what you're actually wanting...
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answered logical test if object is a directory
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answered strange jags.parallel error / avoiding lazy evaluation in function call
1d
comment Manually defining the colours of a wireframe
Probably not worth posting untested wild-assed guesses that, if I understood it correctly, were reported later in the thread to not have worked out ;). If it actually does somehow work, could you show us how?
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comment Manually defining the colours of a wireframe
Unfortunately, this looks ungodly difficult to accomplish in lattice. The rendering of 3-D objects is the one part of the package that uses a C-level function (wireframePanelCalculations, in latticePackageSource/src/threeDplot.c). wireframePanelCalculations is called (using .Call()) in the function lattice:::panel.3dwire, and it in turn calls a just-previously defined R function, wirePolygon, once for each facet of the surface. All that gets passed across between the C and R functions are the z-values and vector of color levels, and there's just no way to bypass this. Too bad!
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comment find all disjoint (non-overlapping) sets from a set of sets
@user1322491 -- If I understand your question, here's an idea that should help. replicate(5, sample(1:50, size=20)) (This example gives you five sets of 20 integers selected from between 1 and 50, which you can then use as indices into your list of subsets.)
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comment determine when an R base function was added
Although that news database only goes back to R 2.10.0. The R sources include text files ONEWS and OONEWS that together go back to R-0.50, but I can't immediately find how to get them loaded into the database accessed by news(). I suppose one could paste them together into NEWS and then recompile R, but that seems like a heavy handed solution. Anyone know another way?
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comment R: matrix of doubles turns into a matrix of strings
Set options(error=recover). Then, when the error is thrown, you will be popped into a browser, of sorts, from which you can enter any of the frames that were active at the time of the error. At that point, go to a frame from which you can have a look at im's value, and check whether it's a character vector. Here is an example of what that process looks like.
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comment Recursive object-listing
Super. Thanks for this. I'm sure I'll use it as a template for other tree-walking functions in the future.
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revised Recursive object-listing
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revised Recursive object-listing
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May
21
answered Recursive object-listing
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