[R] Gaussian Process Classification R packages

Bert Gunter bgunter.4567 at gmail.com
Tue Dec 12 01:01:45 CET 2017


For the record:

I **was** trying to be helpful. I simply didn't know whether "I struggled"
meant that the OP had done a web search; as Chuck mentioned, when I did
one, I found what looked like possibly helpful hits. The OP's hostile
response frankly surprised me, but I see no reason to respond in kind.

Cheers,
Bert



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 Mon, Dec 11, 2017 at 3:48 PM, Jeff Newmiller <jdnewmil at dcn.davis.ca.us>
wrote:

> While a plea about struggling may seem appropriate to you, it is just as
> content-free as a reply telling you to use Google... and like it or not,
> that tit-for-tat arises due to frustration with lack of specificity as
> detailed by Charles. That is, if you are constructive about documenting
> your issue with a reproducible example and mentioning what you have tried
> and how it failed, you won't prompt such frustrated/unhelpful responses in
> the future.
>
> Did you find [1] or [2]?
>
> [1] https://stats.stackexchange.com/questions/177677/gaussian-
> process-prediction-interval
>
> [2] https://stats.stackexchange.com/questions/9131/obtaining-
> a-formula-for-prediction-limits-in-a-linear-model/9144#9144
> --
> Sent from my phone. Please excuse my brevity.
>
> On December 11, 2017 9:53:01 AM PST, Damjan Krstajic <
> dkrstajic at hotmail.com> wrote:
> >Thank you Charles Berry for your kind reply. I don't see anything wrong
> >with the word "struggling". I have spent several hours trying various R
> >packages like kernlab and GPfit to use GP to create a binary
> >classification model which produces a prediction interval for each
> >sample. I have been struggling because with all of them you may create
> >a GP classification model but it only produces a single prediction
> >probability, and not a prediction interval of probabilities. Packages
> >that I have tried may provide a prediction interval for regression but
> >not for binary classification.
> >
> >
> >You mention "The Gaussian Processes Web Site", have you checked how
> >many R packages are listed there?
> >
> >
> >I have been coding in R for more than a decade and contact r-help when
> >I am struggling (I don't see anything wrong with this word) to find a
> >solution in R. Replies like "Google it!" are below my level of my
> >communication and understanding of others.
> >
> >
> >Best wishes
> >
> >DK
> >
> >
> >________________________________
> >From: Berry, Charles <ccberry at ucsd.edu>
> >Sent: 11 December 2017 17:04
> >To: Damjan Krstajic
> >Cc: Bert Gunter; r-help at r-project.org
> >Subject: Re: Gaussian Process Classification R packages
> >
> >
> >> On Dec 11, 2017, at 8:06 AM, Damjan Krstajic <dkrstajic at hotmail.com>
> >wrote:
> >>
> >> I have kindly asked for help and I am sad to receive such a reply
> >from some on the r-help list.
> >>
> >>
> >
> >Well, you only said you were `struggling' to find a package.
> >
> >Bert may well have done the Google search himself and found numerous
> >resources on such models including links to R (as I did, see below).
> >If so, his response seems quite natural.
> >
> >Perhaps, you need to say what is wrong with the hits you got and the
> >packages that they describe to keep a potential response from running
> >in the wrong direction. Perhaps, you have misunderstood the
> >capabilities of a package or failed to grasp an inobvious way to use
> >the package to reach your goal.  In any case, providing some background
> >of why you think the obvious leads do not work in your case can be
> >helpful.
> >
> >Doing that search myself I see links to R packages, R functions, and to
> >"The Gaussian Processes Web Site" which has a table of possibly
> >relevant softwares.  It seems like there is a lot there to digest.
> >
> >HTH,
> >
> >Chuck
> >
> >> I did google it prior to sending my request, and I could not find any
> >R package which provides GP classification model which produces
> >prediction intervals for each sample. I would be grateful if anybody
> >could inform me about it. Thank you.
> >>
> >>
> >> ________________________________
> >> From: Bert Gunter <bgunter.4567 at gmail.com>
> >> Sent: 11 December 2017 15:50
> >> To: Damjan Krstajic
> >> Cc: r-help at r-project.org
> >> Subject: Re: [R] Gaussian Process Classification R packages
> >>
> >> Google it!
> >>
> >> "R Gaussian process model binary classification."
> >>
> >> Cheers,
> >> Bert
> >>
> >
> >
> >
> >       [[alternative HTML version deleted]]
> >
> >______________________________________________
> >R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >https://stat.ethz.ch/mailman/listinfo/r-help
> >PLEASE do read the posting guide
> >http://www.R-project.org/posting-guide.html
> >and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
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> and provide commented, minimal, self-contained, reproducible code.
>

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