tario, Canada
> Web: https://socialsciences.mcmaster.ca/jfox/
>
>
>
>
> > -Original Message-----
> > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Eric
> > Bridgeford
> > Sent: Tuesday, April 2, 2019 5:01 PM
> > To: Bert Gunter
rstudent calls influence, to my knowledge, and all of the results passed by
rstudent are dependent on values returned by influence (other than the
weights, which I can't imagine are NaN), so I believe that influence is the
issue. See the line
https://github.com/SurajGupta/r-source/blob/a28e609e72ed
io, Canada
> Web: https://socialsciences.mcmaster.ca/jfox/
>
>
>
>
>> -Original Message-
>> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Eric
>> Bridgeford
>> Sent: Tuesday, April 2, 2019 5:01 PM
>> To: Bert Gunter
>>
ic
> Bridgeford
> Sent: Tuesday, April 2, 2019 5:01 PM
> To: Bert Gunter
> Cc: R-help
> Subject: Re: [R] Fwd: Potential Issue with lm.influence
>
> I agree the influence documentation suggests NaNs may result; however, as
> these can be manually computed and are, ind
Hi Eric,
When I run your code (using the MASS library) I find that
rstudent(fit2) also returns NaN in the seventh position. Perhaps the
problem is occurring there and not in the "influence" function.
Jim
On Wed, Apr 3, 2019 at 9:12 AM Eric Bridgeford wrote:
>
> I agree the influence documentatio
I agree the influence documentation suggests NaNs may result; however, as
these can be manually computed and are, indeed, finite/existing (ie,
computing the held-out influence by manually training n models for n points
to obtain n leave one out influence measures), I don't possibly see how the
func
How can I add attachments? The following two files were attached in the
initial message
On Tue, Apr 2, 2019 at 3:34 PM Bert Gunter wrote:
> Nothing was attached. The r-help server strips most attachments. Include
> your code inline.
>
> Also note that
>
> > 0/0
> [1] NaN
>
> so maybe something l
Also, I suggest you read ?influence which may explain the source of your
NaN's .
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Tue, Apr 2, 2019 at 1:29 PM Ber
I told you already: **Include code inline **
See ?dput for how to include a text version of objects, such as data
frames, inline.
Otherwise, I believe .txt text files are not stripped if you insist on
*attaching* data or code. Others may have better advice.
Bert Gunter
"The trouble with having
Nothing was attached. The r-help server strips most attachments. Include
your code inline.
Also note that
> 0/0
[1] NaN
so maybe something like that occurs in the course of your calculations. But
that's just a guess, so feel free to disregard.
Bert Gunter
"The trouble with having an open mind
Hi R core team,
I experienced the following issue with the attached data/code snippet,
where the studentized residual for a single observation appears to be NaN
given finite predictors/responses, which appears to be driven by the
glm.influence method in the stats package. I am curious to whether t
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