[R-sig-Geo] Kriging question, please

Erin Hodgess er|nm@hodge@@ @end|ng |rom gm@||@com
Thu Dec 19 21:13:19 CET 2019


This is great!

Thanks Joe!

Sincerely,
Erin
Erin Hodgess, PhD
mailto: erinm.hodgess using gmail.com


On Thu, Dec 19, 2019 at 12:47 PM Joe Lewis <josephlewis1992 using gmail.com>
wrote:

> Hi Erin,
>
> Depending on what you're trying to do, you may want to look into point
> pattern analysis, particularly on linear networks (lots of research on how
> to conduct kernel density estimations with traffic accident data)
>
> See spatial analysis along networks (Okabe and Sugihara, 2012) and chapter
> 17 of spatial point patterns methodology and applications with R (Baddeley
> et al. 2016) for introductions.
>
> Hope that helps.
>
> Kind regards,
> Joseph Lewis
>
> On Thu, Dec 19, 2019 at 7:45 PM Joe Lewis <josephlewis1992 using gmail.com>
> wrote:
>
>> Hi Erin,
>>
>> Depending on what you're trying to do, you may want to look into point
>> pattern analysis, particularly on linear networks (lots of research on how
>> to conduct kernel density estimations with traffic accident data)
>>
>> See spatial analysis along networks (Okabe and Sugihara, 2012) and
>> chapter 17 of spatial point patterns methodology and applications with R
>> (Baddeley et al. 2016) for introductions.
>>
>> Hope that helps.
>>
>> Kind regards,
>> Joseph Lewis
>>
>>
>> On Thu, 19 Dec 2019, 19:37 Erin Hodgess, <erinm.hodgess using gmail.com> wrote:
>>
>>> Hi again everyone:
>>>
>>> Sorry for the unclear question.
>>>
>>> Typically, I have data that is at say, 8 locations and collected every
>>> hour.  So spatial and/or spatial-temporal kriging works fine.
>>>
>>> In this case, I am dealing with traffic accident data.  So it can be at
>>> "any" location and at any time.  I had the (probably incorrect)
>>> impression
>>> that kriging may not work in that setting.
>>>
>>> Any info much appreciated.
>>>
>>> Thanks for your understanding.
>>>
>>> Sincerely,
>>> Erin
>>>
>>>
>>>
>>> Erin Hodgess, PhD
>>> mailto: erinm.hodgess using gmail.com
>>>
>>>
>>> On Thu, Dec 19, 2019 at 12:15 PM Jari Oksanen <jari.oksanen using oulu.fi>
>>> wrote:
>>>
>>> > Howdy,
>>> >
>>> > Danie Kriege  [dɑniː ˈkriχə]
>>> > <https://en.wikipedia.org/wiki/Help:IPA/Afrikaans> was a mining
>>> engineer.
>>> > I find it very hard to believe there is a practicing engineer who
>>> thinks
>>> > that you can find a gold mine only if you have collected data in a
>>> regular
>>> > grid (if that is what you mean with “regular data"). Indeed, his
>>> methods
>>> > can be used for usual prospecting data – which typically is irregular
>>> or
>>> > not in a regular grid.
>>> >
>>> > Cheers, J.
>>> >
>>> > On 19 Dec 2019, at 20:04, Erin Hodgess <erinm.hodgess using gmail.com>
>>> wrote:
>>> >
>>> > Hello!
>>> >
>>> > Is there a method for Kriging for irregular data, please?  I’m about
>>> 99.9%
>>> > sure that there is not, but just thought I would double check.
>>> >
>>> > Thanks so much for your help!
>>> >
>>> > Happy Holidays!
>>> >
>>> > Sincerely,
>>> > Erin
>>> >
>>> > --
>>> > Erin Hodgess, PhD
>>> > mailto: erinm.hodgess using gmail.com
>>> >
>>> > [[alternative HTML version deleted]]
>>> >
>>> > _______________________________________________
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>>> >
>>> >
>>> >
>>>
>>>         [[alternative HTML version deleted]]
>>>
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>>

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