Thanks for the isoMDS pointer. I found one implementation of isomap at http://user.cs.tu-berlin.de/~astro/kmethods though the web page suggests the code may be immature.
--- Jari Oksanen <[EMAIL PROTECTED]> wrote: > On Thu, 2006-06-15 at 07:13 +0300, Jari Oksanen > wrote: > > > > > > > > 1) use nonmetric/gradient descent MDS which > seems to > > > allow missing data, or > > > > > Not the isoMDS function in MASS. if N(N-1) is a > problem, then nonmetric > > MDS may not be the solution. > > Sorry for the wrong information: isoMDS does handle > NA. I remembered old > times when I looked at the issue, but isoMDS changed > since. Fine work! > > cheers, jari oksanen > -- > Jari Oksanen -- Dept Biology, Univ Oulu, 90014 Oulu, > Finland > email [EMAIL PROTECTED], homepage > http://cc.oulu.fi/~jarioksa/ > > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
