Displaying 3 results from an estimated 3 matches for "facor".
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factor
2005 Dec 05
2
lmer and glmmPQL
...e within each
approach?
m1 = glmmPQL(RICH ~ ZONE, family = poisson, data, random = ~ YEAR | SITE
/ QUADRAT)
m2 = lmer(RICH ~ ZONE +(YEAR|SITE)+ (YEAR|QUADRAT), family = poisson,
data)
As a follow up - what would be the most appropriate model formula (using
glmmPQL syntax) to specify both a nested facor and repeated
observations? Specifically, I am dealing with experimental data with
three factors. ZONE is a fixed effect. Three sites (SITE) are nested
within each ZONE. Multiple quadrats within each SITE are measured
across multiple years. I want to represent the nesting of SITE within
ZONE an...
2006 Aug 10
0
QUestion on prediction of class from rpart
...t in both
training and test data sets has new
levels in the test set. This is true that there are new levels for some
of the variables in the test set, although,
the variables themselves are identical in both. My understanding from
reading the documentation on
predict.rpart is that if one of the facor-variables does have new levels
in the test set, it is passed through the tree and
is left at the deepest possible node. I tried to run predict.rpart
directly but it says "function not found". Does this have
to be installed separately? I have loaded the rpart library to run the
training...
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...