Displaying 2 results from an estimated 2 matches for "zz0".
Did you mean:
zz
2005 Oct 17
0
pdIdnot / logLik in glmmPQL
Dear R users,
I have been using the pdMat class "pdIdnot" (from the mgcv
package)instead of "pdIdent" to avoid overflow in GLMM fits with
the MASS package function glmmPQL, of the following form:
fit1 <- glmmPQL(fixed=y0~-1+xx0, random=list(gp=pdIdent(~-1+zz0)),
family=binomial) # vulnerable to overflow
fit2 <- glmmPQL(fixed=y0~-1+xx0, random=list(gp=pdIdnot(~-1+zz0)),
family=binomial) # overflow-proof
In instances in which fit1 does *not* lead to overflow, the result
sometimes differs from fit2. This lea...
2014 Feb 08
3
[LLVMdev] SCEV implementation and limitations, do we need "pow"?
On 2/7/14, 10:24 AM, Andrew Trick wrote:
>
> On Feb 5, 2014, at 12:54 AM, Mehdi Amini <mehdi.amini at silkan.com
> <mailto:mehdi.amini at silkan.com>> wrote:
>
>> Hi,
>>
>> I was looking at some bugs to play with, and I started with
>> http://llvm.org/bugs/show_bug.cgi?id=18606
>>
>> As I commented there, a loop is unrolled and exhibit