Displaying 2 results from an estimated 2 matches for "lily_sum".
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2009 Aug 31
2
interactions and stall or memory shortage
...or a single pair of
interactions, when I try to evaluate two pairs of interactions(
flowers*gopher, flowers*rockiness) my computer runs out of memory, and the
larger desktop I use just doesn't go anywhere after about 20 minutes.
Is it really that big a calculation?
to start:
mle2(minuslogl = Lily_sum$seedlings ~ dnbinom(mu = a, size = k),
start = list(a = 10, k = 1))
then:
i2<-interaction(Lily_sum$flowers, Lily_sum$gopher)
i3<-interaction(Lily_sum$flowers, Lily_sum$rockiness)
mle2(Lily_sum$seedlings ~ dnbinom(mu = a, size = k), start=list(a=10,k=1)
,parameters=list(a~i3+i2+Lily_sum$flo...
2009 Oct 15
2
When modeling with negbin from the aod package...
Hi,
When modeling with negbin from the aod package, parameters for a given count
y | lambda~Poisson(lambda)
with lambda following a Gamma distribution Gamma(r, theta)
are estimated.
The intercept is called phi.
Some other parameters may be also be estimated from factors in the
data: the estimates returned for all these would be in accordance with
the Value listing in the negbin entry in the aod