Making this a thing?

[noamross]

I have no idea if you intend to do more with this package, but if I am able to find time, I might contribute as a way about learning about OpenMP. Some thoughts about what I might include:

• Actions over arbitrary array dimensions
• Rcpp(Armadillo), because it's what I'm used to? Or will it just contribute unneccessary overhead?
• Breaking the rules: In-memory transformation
• Support for one of the big matrix frameworks: bigmemory/ff

[wrathematics]

It was just a proof of concept (I had the infrastructure lying around in another package, and the col_sums() bit didn't take too long). I guess I'm not opposed to extending it.

• When you say arbitrary array dimensions, do you mean n-dimensional arrays? I've never needed anything beyond matrices, but it's a possibility I guess.
• What stuff from Armadillo would you want? Or do you just mean the storage class?
• This is dangerous, but an optional "you break it, you buy it" argument is reasonable.
• Never seriously used either, but not a bad idea. I don't exactly understand how one streams data from them. I think ff (and possibly bigmemory, dunno) handles everything through external pointers, which is probably good because then it should be possible to operate on a fixed buffer (as opposed to alloc'ing, dealloc'ing SEXP's).