R devel - May 2007 - Native implementation of rowMedians()

Hi,

I've got a version of rowMedians(x, na.rm=FALSE) for matrices that
handles missing values implemented in C.  It has been optimized for
memory and speed.  To avoid coercing integers to doubles, and hence
allocate an additional 200% memory, there is one C function for
integers and one for doubles.

The rowMedians() implementation is currently sitting in my non-CRAN
package R.native available by:

source("http://www.braju.com/R/hbLite.R")
hbLite("R.native")
library(R.native)
example(rowMedians)

The source code package is available at:

 http://www.braju.com/R/repos/R.native_0.1.2.tar.gz

Before I submit a package to CRAN consisting of pretty much just
rowMedians(), would it make more sense for it to go into one of the
core packages?  If so, how should I proceed?

/Henrik

Hi Henrik,
>>>>> "HenrikB" == Henrik Bengtsson <hb at
stat.berkeley.edu>
>>>>>     on Sun, 13 May 2007 21:14:24 -0700 writes:
    HenrikB> Hi,
    HenrikB> I've got a version of rowMedians(x, na.rm=FALSE) for
matrices that
    HenrikB> handles missing values implemented in C.  It has been optimized
for
    HenrikB> memory and speed.  To avoid coercing integers to doubles, and
hence
    HenrikB> allocate an additional 200% memory, there is one C function for
    HenrikB> integers and one for doubles.

    HenrikB> The rowMedians() implementation is currently sitting in my
non-CRAN
    HenrikB> package R.native available by:

    HenrikB> source("http://www.braju.com/R/hbLite.R")
    HenrikB> hbLite("R.native")
    HenrikB> library(R.native)
    HenrikB> example(rowMedians)

    HenrikB> The source code package is available at:

    HenrikB> http://www.braju.com/R/repos/R.native_0.1.2.tar.gz

    HenrikB> Before I submit a package to CRAN consisting of pretty much just
    HenrikB> rowMedians(), would it make more sense for it to go into one of
the
    HenrikB> core packages?  If so, how should I proceed?

As they say: You have to convince at least one member of R-core
that ``it's worth it''.  {Then he may have to bear the battle
with dissenting core members  ;- }

I'm quite interested, but really you have to do the work of unbundling
it from all the R.oo stuff before I have another longer look.

Martin