Displaying 6 results from an estimated 6 matches for "bialowieza".
2008 Nov 18
1
"deparse" with "nlines" argument produces empty elements (PR#13299)
Full_Name: Kamil Barto?
Version: 2.8.0
OS: windows xp
Submission from: (NULL) (212.33.92.187)
According to the "deparse" function documentation "nlines" is the *maximum*
number of lines to produce. But, when "nlines" argument is supplied, it produces
exactly nlines of result, and the result contains empty elements at the end.
Example:
>
2008 Feb 18
4
newbie (me) needs to model distribution as two overlapping gaussians
Recently, I have been working with some data that look like two overlapping gaussian distributions. I would like to either
1) determine the mean and SD for each of the two distributions
OR
2) get some (bayesian ?) statistic that estimates how likely an observation is to belong to the left-hand or right-hand distribution
In case I'm using the wrong language, my data looks something like
2008 Oct 17
1
find bayesian information criterion for all variable combinations
Hi,
I have data for one dependent variable and multiple independent variables
y = b0 + b1*x1 + b2*x2 + ...
I want to a list of all models that have some subset of the independents
(just x1 x2, and not x3, etc.) and their corresponding BIC values. Is there
a pre-existing function that does this? I saw that you can calculate
individual BIC values using 'lm' and something like
AIC(lm1, k
2008 Dec 25
0
Class and object problem
...s that you're not using the
whole vector. From your example:
Delta <- c(m1 = 0, m2 = 1.8, m3 = 4.2, m4 = 6.2)
exp(-0.5*Delta)/sum(exp(-0.5*Delta))
m1 m2 m3 m4
0.63529363 0.25829111 0.07779579 0.02861947
In general the dRedging package at
http://www.zbs.bialowieza.pl/users/kamil/r/ can do these
problems (I hate to recommend this package because it
offers the danger of thoughtless convenience,
but if you really know that you want to enumerate
models and do IC-based model averaging it can save a
lot of time). At the moment, though, it doesn't work
with gl...
2008 Jul 07
2
Running "all possible subsets" of a GLM (binomial) model
I have spent a fair amount of time looking for a package that is automated
to run glm (binomial) regression models with all possible subsets of my
independent variables. Something akin to Lumley's "leaps" package, but can
be applied to glms, not just lms; or something similar to Stata's brute
force "tryem" function? If anyone can point me in the right direction I
2008 Dec 26
1
starting values update
...s that you're not using the
whole vector. From your example:
Delta <- c(m1 = 0, m2 = 1.8, m3 = 4.2, m4 = 6.2)
exp(-0.5*Delta)/sum(exp(-0.5*Delta))
m1 m2 m3 m4
0.63529363 0.25829111 0.07779579 0.02861947
In general the dRedging package at
http://www.zbs.bialowieza.pl/users/kamil/r/ can do these
problems (I hate to recommend this package because it
offers the danger of thoughtless convenience,
but if you really know that you want to enumerate
models and do IC-based model averaging it can save a
lot of time). At the moment, though, it doesn't work
with gl...