Displaying 6 results from an estimated 6 matches for "full_models".
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2008 Feb 15
2
help on using try() to catch an error
Dear R Users,
I have the following glm, which I am running several times in a loop
(I am not including the full code):
reduced_model <- NULL;
full_model <- NULL;
reduced_model <- try(glm.fit(X4,n,family=poisson(link="log")))
full_model <- try(glm.fit(X5,n,family=poisson(link="log")));
On some occasions, an error is produced, which is why I have attempted
to work
2010 Sep 22
3
extracting random effects from model formula
Hi R-users
I would like to extract the random effects ("1|SITE", "1+SPECIES|SITE"
and "BA|SITE") from this model formula:
Full_model <- formula (VAR ~ (1|SITE) + (1+SPECIES|SITE) + (BA|SITE) +
HEIGHT + COND + NN_DIST)
I tried:
terms(Full_model)
labels(terms(Full_model))
but I could not distinguish between random and fixed effects.
thanks
2008 Feb 20
1
debugging a try() statement
Dear R Users,
I implemented a try() statement that looks like:
<- function(index)
{
reduced_model <- try(glm.fit(X4,n,family=poisson(link="log")))
full_model <- try(glm.fit(X5,n,family=poisson(link="log")))
if (inherits(reduced_model,"try-error") ||
inherits(full_model,"try-error")) return(NA)
else
{
p <-
2011 May 08
1
Hosmer-Lemeshow 'goodness of fit'
I'm trying to do a Hosmer-Lemeshow 'goodness of fit' test on my logistic
regression model.
I found some code here:
http://sas-and-r.blogspot.com/2010/09/example-87-hosmer-and-lemeshow-goodness.html
The R code is above is a little complicated for me but I'm having trouble
with my answer:
Hosmer-Lemeshow: p=0.6163585
le Cessie and Houwelingen test (Design library): p=0.2843620
2008 Jan 25
1
increasing speed for permutations of glm
Dear R Programmers,
I am trying to run a Poisson regression on all pairs of variables in a data
set and
obtain the permutation distribution. The number of pairs is around 100000.
It seems my code will take weeks to run, unless I try something else.
Could you give me any suggestions on how to improve the speed of the
code below, or any general suggestions on how I may accomplish this task.
Thanks
2008 Mar 04
0
Help with RailRoad
When I run this code I don''t hace any problem:
railroad -a -i -o full_models.dot -C
But if run this code:
railroad -a -i -o full_models.dot -M
I get this:
/Users/juan/Desktop/dticket_4_03_08/vendor/rails/activerecord/lib/active_record/base.rb:1532:in
`method_missing_without_paginate'': undefined method `_'' for
#<Class:0x251965c> (NoMethodError)
fro...