# Questions tagged [spatial]

The field of study concerning statistical methods that use space and spatial relationships (such as distance, area, volume, length, height, orientation, centrality and/or other spatial characteristics of data) directly in their mathematical computations.

745 questions
Filter by
Sorted by
Tagged with
14 views

### Can random effects be used in the spatial LGCP package (from JSS paper by Taylor et al. 2015)?

I am reading the excellent statistical software paper found here in this link. The paper is an R implementation of Log-Gaussian Cox processes for spatial point process applications. Whilst the ...
13 views

### No convergence when fitting theoretical semivariogram to empirical?

I'm kind of new to working with semivariograms. But I just wanted to fit a semivariogramm to my data and when fitting the theoretical variogram to my empirical it tells me that: ...
36 views

12 views

### Inconsistent results from partial Mantel test on (non)distance matrices

Currently I am trying to look at the correlation between three matrices of ecological data. All three are forms of distance matrices (two matrices of pairwise community dissimilarities and one matrix ...
12 views

### Selecting a Model for Large-Scale Spatial Monthly Data

I'd like to perform a regression analysis with a large spatial dataset that is likely spatially and temporally correlated. I've described the data, goal, and question in further detail below: Data: ...
29 views

### Sampling Technique: Categorical Data, Many Levels

I have a data set that has a categorical variable with almost half the number of observations as categories. Certain categories have only one observation. A minimal reproducable example in R would ...
29 views

7 views

### Calculating Eta squares for Spatial Models

I am trying to calculate eta squares for spatial model (spatial error, spatial lag, SAR). In simple OLS model we can iteratively calculate explained sum of squared as: \$ \sum_{i = 1}^{n} (\hat y - ...
29 views

### Spatial Panel Data Analysis in R: Comparison between 'spml' and 'plm' function

So, I'm a R user and currently working on a spatial analysis on panel data. Based on my experience for these past days, I understand that spml function on ...
13 views

### Testing spatial association between two sets of points (distributed in x-y space between two concentric circles)

I have 2 sets of points that correspond to 2 biological cell types, and these cell types are distributed in x-y space in the region between 2 concentric circles (i.e. an annulus). However, the inner ...
29 views

### Measures of spatial dispersion

I have a series of data points in R^3. I am considering different measures of the spatial dispersion of these points. I have noticed something interesting. I have considered two different measures ...
50 views

### model selection for Mixed Poisson model for replicated point pattern analysis

I have fitted a mixed Poisson Point Process Model to Several Point Patterns using the mppm function from the R package spatstat. ...
13 views

### How do you interpret results from crossCorrelation in R from spatialEco package?

I want to use the crossCorrelation function from the R package https://rdrr.io/cran/spatialEco/man/crossCorrelation.html spatialEco to examine the relationship between people's perceptions and the ...
9 views

### Methods to align/reduce distance between two or more 3D graph-spaces?

I'm trying to align multiple graphs of spatial data, similar to image registration, but on a 3D graphspace of a select feature. I have a bunch of point data with x,y,z coordinates that together, ...