[R-sig-Geo] 3D point pattern

Dear members, I write in order to ask if someone could indicate me if there is a way to measure and compare between groups the 3D homogeneity of a distribution of points in 3D. I think to some extension in 3D of usual point pattern analysis. Thanks in advance for any advice Best Paolo

[R-sig-Geo] Test for difference between two pint patterns

Hi folks, I'm new in point pattern analysis; thus my question could appear trivial for experts; Given two ppp objects (spatstat package) [with different number of points] I'm looking for a way to assess the statistical difference in the distributions of points. studpermu.test() seems doing

Re: [R-sig-Geo] Access to google drive account using RGoogleDocs

biv...@nhh.no Cc: Paolo Piras; r-sig-geo@r-project.org Oggetto: Re: [R-sig-Geo] Access to google drive account using RGoogleDocs Roger, Thank you for this input. I am accustomed to high latency. Though I imagine that this DDOS on DSN services will escalate through the the end of the present ele

[R-sig-Geo] Access to google drive account using RGoogleDocs

Hi folks, I'm not sure if this topic could be appropriate here as it is not properly geostatistical but maybe someone could help me I have a shared space on google drive with some colleagues; I would like to access there from R and to list files in the folders and eventually to load some data

Re: [R-sig-Geo] uniformly sample points on a border of a polygon

Thanks Jeff, this solution also works quite well! Thanks again to all those that proposed different solutions. Best Paolo Da: R-sig-Geo per conto di Hollister, Jeff Inviato: domenica 16 ottobre 2016

Re: [R-sig-Geo] uniformly sample points on a border of a polygon

Thanks Mike, I'll look forward for this solution too best paolo Da: mgm mgm <mgm917...@gmail.com> Inviato: venerd� 14 ottobre 2016 23.12 A: Paolo Piras Cc: Adrian Baddeley; Rolf Turner; Ege Rubak; r-sig-geo Oggetto: Re: [R-sig-Geo] uniformly sample

Re: [R-sig-Geo] [FORGED] uniformly sample points on a border of a polygon

Dear Adrian, even this solution is pretty cool. Again, thanks to all who suggested me how to do that. Best Paolo Da: Adrian Baddeley <adrian.badde...@curtin.edu.au> Inviato: venerd� 14 ottobre 2016 02.14 A: Paolo Piras; Rolf Turner Cc: r-sig-geo; Ege

Re: [R-sig-Geo] [FORGED] uniformly sample points on a border of a polygon

Thanks a lot Rolf! This is virtually exactly what I need; I'm very grateful for that All the best Paolo Da: Rolf Turner <r.tur...@auckland.ac.nz> Inviato: gioved� 13 ottobre 2016 23.12 A: Paolo Piras Cc: r-sig-geo; adrian.badde...@curtin.edu.au; Ege

[R-sig-Geo] uniformly sample points on a border of a polygon

HI folks, I write for a (hopefully) relatively simple question: I would need to uniformly sample 1000 or more points **along the border** of a polygon (not within the area enclosed) that is identified by ordered but not equally spaced points; which is the fastest way? In a first moment I

[R-sig-Geo] Fractal dimension 2d and 3d shapes

HI folks, I would like to compute the fractal dimension of 2D and 3D shapes identified by k points thus on matrices kx2 or kx3. I know fractaldim package but I have some trouble in working with it. I write to ask if anyone has some experience with this kind of analysis. All the best Paolo

Re: [R-sig-Geo] spatial sampling with an un-ordered polygon for which links between points are known

Thanks a lot Michael!! This is perfect! And elegant of course... Thankyou very much! Best Paolo Da: Michael Sumner <mdsum...@gmail.com> Inviato: venerd� 24 giugno 2016 17.41 A: Paolo Piras; r-sig-geo@r-project.org Oggetto: Re: [R-sig-Geo] spatial sa

[R-sig-Geo] spatial sampling with an un-ordered polygon for which links between points are known

Hi folks, I write in order to know if there is a solution to the following spatial sampling problem: I have a polygon that is not ordered; however, I know the "links" (or edges) between points; I need to sample 2000 points within the polygon. Using spsample() and Polygon() I need an ordered

[R-sig-Geo] polar inertia 2

Sorry for multiple posting, my first message was refused by my server Hi folks, I need to compute the polar inertia of a generalized polygon. It can includes points within the perimeter. Moreover, points are not ordered (i.e. clockwise, etc.). The same is needed in 3D but 2D is sufficient

[R-sig-Geo] polar intertia of a generalized polygon.

Hi folks, I need to compute the polar inertia of a generalized polygon. It can includes points within the perimeter. Moreover, points are not ordered (i.e. clockwise, etc.). The same is needed in 3D but 2D is sufficient for the moment. Do you know some function that can do that? Thanks in

[R-sig-Geo] smoothing spline with known error in y

Hi folks, I write in order to ask an advice on how to correctly set a smoothing spline model where I know the error associated to each y (univariate) observation. After reading about it, I suppose I need a weighted spline model (in this case I would like to know how to use experimental error in

[R-sig-Geo] spatial data 3D bivariate distributions

Hi folks, I'm trying to modify an R code for plotting x,y spatial data in 3D bivariate distribution using R; I modified a code from here: http://stackoverflow.com/questions/19949435/3d-plot-of-bivariate-distribution-using-r-or-matlab I would like to obtain the same results coming from the

Re: [R-sig-Geo] R or R studio 3d manipulate

This is simply...wonderful... thankyou very much Greg! The sfunc was not at all intuitive..so I think your example can inspire a lot of r-sig-geo community best paolo Da: Greg Snow [538...@gmail.com] Inviato: mercoledì 17 luglio 2013 19.43 A: Paolo Piras Cc: r

Re: [R-sig-Geo] R or R studio 3d manipulate

to using the cloud function from lattice or rgl or do you own projections (or delve further into using scatterplot 3d than I have). On Mon, Jul 8, 2013 at 10:49 AM, Paolo Piras paolo.pi...@uniroma3.itmailto:paolo.pi...@uniroma3.it wrote: Hi greg I did not know the function and it is very nice

Re: [R-sig-Geo] R or R studio 3d manipulate

Da: Greg Snow [538...@gmail.com] Inviato: lunedì 8 luglio 2013 17.53 A: Paolo Piras Cc: r-sig-geo@r-project.org Oggetto: Re: [R-sig-Geo] R or R studio 3d manipulate If you can write a function that takes the arguments that you want to change and creates the graph you want to see

[R-sig-Geo] R or R studio 3d manipulate

Hi folks, I'm performing some simulation of spatial data that I need to visualize when manipulating a given variable in expression Do you know if there is ANY possibility to build a 3d graph with a manipulator button? In 2d it is very easily feasable in RStudio; I did it but in 3D ...I cannot

[R-sig-Geo] different spatial structures for different variables

this. Thankyou in advance for any advice Best regards Paolo Piras ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo

Re: [R-sig-Geo] spatial regression model

Dear Zia and all those that answered me, thankyou very much for your advices; I will surely include them in my analyses thankyou again paolo Da: Zia Ahmed [z...@cornell.edu] Inviato: giovedì 1 novembre 2012 14.58 A: Arnaud Mosnier Cc: Paolo Piras; r-sig

Re: [R-sig-Geo] spatial regression model

as corStructure term or to the package spgwr; however, I'm not sure about the possibility to include multivariate response in spgwr. Being relatively new in this type of analyses I wrote you in order to have some useful suggestions about my model. Thankyou in advance Paolo Piras