[R] pair correlation function of 3D points

[Jeff Newmiller]

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On April 28, 2020 3:07:39 PM PDT, Abby Spurdle <spurdle.a using gmail.com> wrote:
>I haven't attempted this.
>(Mainly because I'm not familiar with the theory surrounding it).
>
>However, I looked at the documentation for the spatstat package.
>There are are several functions prefixed with pcf, including one named
>pcf3est.
>According to its description field:
>
>          Estimates the pair correlation function
>          from a three-dimensional point pattern.
>
>*If* it does what it claims, would that solve your problem?
>
>Note (to spatstat authors):
>
>I'm not convinced this package is well documented.
>In fact, I'm not even convinced it meets CRAN standards, which require
>functions to have their arguments documented.
>
>     X
>    Three-dimensional point pattern (object of class "pp3").
>
>Nowhere in the help page, does it say what a pp3 object is, or how to
>create it, or where to find that information.
>Potentially requiring a user to search through a 1766 page document
>for the answer.
>(Yes, I know there's a function named pp3, but I don't think that's
>good enough).
>
>If people are not going to document their packages properly, they
>could try a little bit harder to answer R-help questions that involve
>their packages...
>
>
>On Tue, Apr 28, 2020 at 3:56 AM Labo Eric <leroy using icmpe.cnrs.fr> wrote:
>>
>> Hi,
>>
>> I have the coordinates of 3D points and I want to plot the pair
>> correlation function of these points
>> (https://en.wikipedia.org/wiki/Radial_distribution_function). I
>wonder
>> if it possible to calculate this function with R. Maybe with the
>> spatstat library? I tried but I found the way to do this with 3D
>points
>> but not for 3D points.
>>
>> Could you help me ?
>>
>> Thank you,
>>
>> Best regards,
>>
>> --
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>______________________________________________
>R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>and provide commented, minimal, self-contained, reproducible code.

-- 
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