dear all,
thank you everyone for the profound answers and the needful references!
achim, thank you for the very kind offer!! sorrily i'm not around vienna in
the near feature, otherwise i'd be glad to coming back to your invitation.
yours,
kay
-
Kay Cichini
On 08/22/2010 01:51 PM, Kay Cichini wrote:
achim, thank you for the very kind offer!! sorrily i'm not around vienna in
the near feature, otherwise i'd be glad to coming back to your invitation.
Not that it's any of my business, but I don't think you need to go THAT
far to visit Achim these
hello gavin achim,
thanks for responding.
by logistic regression tree i meant a regression tree for a binary response
variable.
but as you say i could also use a classification tree - in my case with only
two outcomes.
i'm not aware if there are substantial differences to expect for the two
On Fri, 20 Aug 2010, Kay Cichini wrote:
hello gavin achim,
thanks for responding.
by logistic regression tree i meant a regression tree for a binary
response variable. but as you say i could also use a classification tree
- in my case with only two outcomes.
i'm not aware if there are
It would be good to tell us of the frequency of observations in each
category of Y, and the number of continuous X's. Recursive
partitioning will require perhaps 50,000 observations in the less
frequent Y category for its structure and predicted values to
validate, depending on X and the
hello,
my data-collection is not yet finished, but i though have started
investigating possible analysis methods.
below i give a very close simulation of my future data-set, however there
might be more nominal explanatory variables - there will be no continous at
all (maybe some ordered
On Fri, 2010-08-20 at 14:46 -0700, Kay Cichini wrote:
hello,
my data-collection is not yet finished, but i though have started
investigating possible analysis methods.
below i give a very close simulation of my future data-set, however there
might be more nominal explanatory variables -
On Fri, 20 Aug 2010, Kay Cichini wrote:
hello,
my data-collection is not yet finished, but i though have started
investigating possible analysis methods.
below i give a very close simulation of my future data-set, however there
might be more nominal explanatory variables - there will be no
hello everyone,
i sampled 100 stands at 20 restoration sites and presence of 3 different
invasive plant species.
i came across logistic regression trees and wonder if this is suited for my
purpose - predicting presence of these problematic invasive plant species
(one by one) by a set of
On Thu, 2010-08-19 at 13:42 -0700, Kay Cichini wrote:
hello everyone,
i sampled 100 stands at 20 restoration sites and presence of 3 different
invasive plant species.
i came across logistic regression trees and wonder if this is suited for my
purpose - predicting presence of these
On Thu, 19 Aug 2010, Gavin Simpson wrote:
On Thu, 2010-08-19 at 13:42 -0700, Kay Cichini wrote:
hello everyone,
i sampled 100 stands at 20 restoration sites and presence of 3 different
invasive plant species.
i came across logistic regression trees and wonder if this is suited for my
purpose
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