Il giorno 30/dic/2010, alle ore 16.03, Simon Urbanek ha scritto: > On Dec 30, 2010, at 7:50 AM, Matteo Bertini 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? >> > > environment created with hash=TRUE, e.g.: > e = new.env(TRUE, emptyenv()) > e[["foo"]] = "bar" > > You can even set "size" with the expected size if you know it in advance.
Interesting, but is it possible to use this from the C code? Thanks, Matteo ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
