[R] Monotonic regression

Martin Maechler maechler at stat.math.ethz.ch
Mon May 9 09:30:54 CEST 2005

>>>>> "Scott" == Scott Briggs <scott.br at gmail.com>
>>>>>     on Sun, 8 May 2005 21:08:46 +0200 writes:

    Scott> Hi, I'm trying to find an implementation of monotonic regression in R
    Scott> and I haven't been able to find anything that's really related to
    Scott> this.  isoMDS in the MASS package uses monotonic regression, however,
    Scott> I was wondering if there is any standalone function for monotonic
    Scott> regression?

yes, isoreg()  which actually was built by ``exporting'' the
relevant bits & pieaces from MASS' isoMDS.

    Scott> Basically what I'm trying to do is implement monotonic regression
    Scott> where I can see not just the results of each iteration but also be
    Scott> able to tweak the input in order to test for or "kick" the regression
    Scott> out of a local minimum so that I can make sure I have the global
    Scott> minimum.

(Ted Harding has already answered this part.)

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