Displaying 3 results from an estimated 3 matches for "facors".
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factors
2005 Dec 05
2
lmer and glmmPQL
I have been looking into both of these approaches to conducting a GLMM,
and want to make sure I understand model specification in each. In
particular - after looking at Bates' Rnews article and searching through
the help archives, I am unclear on the specification of nested factors
in lmer. Do the following statements specify the same mode within each
approach?
m1 = glmmPQL(RICH ~ ZONE,
2006 Aug 10
0
QUestion on prediction of class from rpart
Hello,
I am trying to predict the classes of a test data set after training an
rpart tree.
When I run:
predict(rpart_object_based_on_training_data, newdata = "testdata", type
= "class", na.action = na.pass)
I get an error message saying that a variable that is present in both
training and test data sets has new
levels in the test set. This is true that there are new levels
2009 Apr 06
0
How to find the cost relationship with a few factors and a few numeric sizes? (Resending with datasets)
I have a small data set (see attachment valve.txt or valve.csv), in which
there are a few facors: Type, ValveBody,Manufacturer
and a few numeric sizes: FlangeSize, Port.Size, Pressure and Cost.
I would like to find a statistics model that shows how Cost is related to
these factors and numeric sizes.
It seems to me that it is hard to find the relationship between Cost and a
few factors using r...