* Ravi Varadhan
> *Cc:* Therneau, Terry M., Ph.D. ; r-devel@r-project.org;
> jorism...@gmail.com; westra.harm...@outlook.com
>
> *Subject:* Re: [Rd] Wrongly converging glm()
>
>
>
> Hi Ravi: Well said. In John's Rvmmin package, he has codes for explaining
> the cause
&
: Friday, July 21, 2017 3:09 PM
To: Ravi Varadhan
Cc: Therneau, Terry M., Ph.D. ; r-devel@r-project.org;
jorism...@gmail.com; westra.harm...@outlook.com
Subject: Re: [Rd] Wrongly converging glm()
Hi Ravi: Well said. In John's Rvmmin package, he has codes for explaining the
cause
of the termin
el-boun...@r-project.org] On Behalf Of
> Therneau, Terry M., Ph.D.
> Sent: Friday, July 21, 2017 8:04 AM
> To: r-devel@r-project.org; Mark Leeds ;
> jorism...@gmail.com; westra.harm...@outlook.com
> Subject: Re: [Rd] Wrongly converging glm()
>
> I'm chiming in late sin
devel@r-project.org; Mark Leeds ;
jorism...@gmail.com; westra.harm...@outlook.com
Subject: Re: [Rd] Wrongly converging glm()
I'm chiming in late since I read the news in digest form, and I won't copy the
entire conversation to date.
The issue raised comes up quite often in Cox mode
I'm chiming in late since I read the news in digest form, and I won't copy the entire
conversation to date.
The issue raised comes up quite often in Cox models, so often that the Therneau and
Grambsch book has a section on the issue (3.5, p 58). After a few initial iterations the
offending co
() function.
With kind regards,
Harm-Jan
From: Joris Meys<mailto:jorism...@gmail.com>
Sent: Thursday, July 20, 2017 16:06
To: Harm-Jan Westra<mailto:westra.harm...@outlook.com>
Cc: r-devel@r-project.org<mailto:r-devel@r-project.org>
Subject: Re: [Rd] Wrongly converging glm()
On Thu, Jul 20, 2017 at 8:32 PM, Harm-Jan Westra wrote:
> My apologies if I seemed to ‘blame R’. This was in no way my intention. I
> get the feeling that you’re missing my point as well.
>
I get that now. But you're on R-devel and you started with the claim that R
"falsely reports...". That loo
a.harm...@outlook.com<mailto:westra.harm...@outlook.com>>
Cc:
r-devel@r-project.org<mailto:r-devel@r-project.org><mailto:r-devel@r-project.org<mailto:r-devel@r-project.org>>
Subject: Re: [Rd] Wrongly converging glm()
On Thu, Jul 20, 2017 at 6:21 PM, Harm-Ja
e is
> always paying attention (even if they know what they're doing).
>
> If R would do that, it wouldn't start the fitting procedure but just
> return an error "Your analysis died due to a lack of useable data." .
> Because that's the problem here.
>
Meys<mailto:jorism...@gmail.com>
Sent: Thursday, July 20, 2017 13:16
To: Harm-Jan Westra<mailto:westra.harm...@outlook.com>
Cc: r-devel@r-project.org<mailto:r-devel@r-project.org>
Subject: Re: [Rd] Wrongly converging glm()
On Thu, Jul 20, 2017 at 6:21 PM, Harm-Jan Wes
gards,
Harm-Jan
From: Simon Bonner
Sent: Thursday, July 20, 2017 12:32 PM
To: Joris Meys; Harm-Jan Westra
Cc: r-devel@r-project.org
Subject: RE: [Rd] Wrongly converging glm()
In defence of Harma-Jan's original post I would say that there is a difference
be
even if they know what they're doing).
>
If R would do that, it wouldn't start the fitting procedure but just return
an error "Your analysis died due to a lack of useable data." . Because
that's the problem here.
>
>
> With kind regards,
>
>
>
lto:r-devel-boun...@r-project.org] On Behalf Of Joris Meys
> Sent: July 20, 2017 11:39 AM
> To: Harm-Jan Westra
> Cc: r-devel@r-project.org
> Subject: Re: [Rd] Wrongly converging glm()
>
> Allow me to chime in. That's an interesting case you present, but as far as
> I'm
ey know what they're doing).
With kind regards,
Harm-Jan
From: Joris Meys
Sent: Thursday, July 20, 2017 11:38 AM
To: Harm-Jan Westra
Cc: r-devel@r-project.org
Subject: Re: [Rd] Wrongly converging glm()
Allow me to chime in. That's an interesting case
Allow me to chime in. That's an interesting case you present, but as far as
I'm concerned the algorithm did converge. The estimate of -9.25 has an
estimated standard error of 72.4, meaning that frequentists would claim the
true value would lie anywhere between appx. -151 and 132 (CI) and hence the
Dear R-core,
I have found an edge-case where the glm function falsely concludes that the
model has converged. The issue is the following: my data contains a number of
covariates, one of these covariates has a very small variance. For most of the
rows of this covariate, the value is 0, except f
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