Displaying 4 results from an estimated 4 matches for "convariance".
2007 May 01
1
dlda{supclust} 's output
Hi,
I am using dlda algorithm from supclust package and I am wondering if
the output can be a continuous probability instead of discrete class
label (zero or one) since it puts some restriction on convariance
matrix, compared with lda, while the latter can.
thanks,
--
Weiwei Shi, Ph.D
Research Scientist
GeneGO, Inc.
"Did you always know?"
"No, I did not. But I believed..."
---Matrix III
Error with regsubset in leaps package - vcov and all.best option (plus calculating VIFs for subsets)
2009 May 20
1
Error with regsubset in leaps package - vcov and all.best option (plus calculating VIFs for subsets)
...:
library(leaps)
subsets<-regsubsets(logcount~.,data=environment,nvmax=10,nbest=2,really.big=FALSE,method="exhaustive")
###the subset regression runs fine when i run it as above and i can get all the usual summaries
###The problem comes when i try and get it to output the variance convariance matric by adding the option vcov=TRUE
##When I do that i get the following:
subsets<-regsubsets(logcount~.,data=environment,nvmax=10,nbest=2,really.big=FALSE,method="exhaustive",vcov=TRUE)
Error in model.frame.default(data = environment, vcov = TRUE, formula = logcount~ :
variabl...
2003 May 19
1
multcomp and glm
I have run the following logistic regression model:
options(contrasts=c("contr.treatment", "contr.poly"))
m <- glm(wolf.cross ~ null.cross + feature, family = "binomial")
where:
wolf.cross = likelihood of wolves crossing a linear feature
null.cross = proportion of random paths that crossed a linear feature
feature = CATEGORY of linear feature with 5 levels:
2007 May 03
0
unscrible pls
...com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi,
>
> I am using dlda algorithm from supclust package and I am wondering if
> the output can be a continuous probability instead of discrete class
> label (zero or one) since it puts some restriction on convariance
> matrix, compared with lda, while the latter can.
>
> thanks,
>
> --
> Weiwei Shi, Ph.D
> Research Scientist
> GeneGO, Inc.
>
> "Did you always know?"
> "No, I did not. But I believed..."
> ---Matrix III
>
>
>
> ------------------...