key-value mapping in C inside R?
Why not use a sparse Matrix package? Hadley
On Thu, Dec 30, 2010 at 6:50 AM, Matteo Bertini <matteo at naufraghi.net> wrote:
I'm testing some modifications in arima.c. I've noticed that a big internal array of double (rbar) is usually sparse and I'd like to add an option to store it as key-value mapping. Is there a library function or some other approach already used inside the R core for key-value mappings? Thanks, Matteo Bertini
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