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Questions tagged [spatial-statistics]

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.

http://support.esri.com/en/knowledgebase/GISDictionary/term/spatial%20statistics

675 questions
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Statistical tests for spatial line patterns?

There are plenty of tests for spatial point patterns that can be used to determine if points are distributed randomly or not, but are there any established tests for spatial line patterns? (I'm thinking straight lines, with just start and end point…
underdark
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Quantifying unevenness of polygon boundaries?

I have two polygons: Polygon 1 and Polygon 2. Using two metrics, area and perimeter length, I want to express quantitatively that Polygon 1 has a more uneven/jagged/irregular perimeter than Polygon 2. Each polygon has the same perimeter length…
luciano
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How to test spatial correlation between two point layers

I have two point layers, which visually have spatial correlation. I'd like to test it but wonder if there is such a method or index？
user1056824
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Spatial regression

I have a question regarding performing spatial regression on data which residuals are spatially correlated. If the residuals are spatially autocorrelated due to the presence of trend, how should I account for the existence of spatial…
Beka
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Which spatial statistics tools to use in examining autocorrelation in two layers?

Possible Duplicate: How to compare two spatial point patterns? I am working on a project and have found myself a bit lost as to which types of Spatial Statistics tools I should use to get the results I am looking for. In short, my project is…
Bonnie
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Storing geographic coordinates for multivariate statistical analysis?

In terms of Principal Components Analysis or Multiple Discriminant Analysis, I have used dummy variables to represent a group of like-features that are located in the same geographic region. For example, in the analysis of two metropolitan cities,…
Michael Markieta
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Spatial heterogeneity: What does spatially varying mean of a process exactly mean?

Imagine the following data set (from http://www.novaims.unl.pt/labnt/geosom/georepository/) which consists of three different regions: Obviously, blue points are more like to be located close to other blue points. The same is true for red points.…
Funkwecker
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Significance test for Moran's I using Monte Carlo Simulation?

I calculated the residuals for my model and measured Moran's I for the residuals of the model. How can I pragmatically determine the significance of Moran's I using Monte Carlo simulation?
Funkwecker
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Setting number of bars in histogram using QGIS

I am using QGIS 2 "Statist" to build a histogram for my data. I see that I can set the band width of the bars, but it seems that "Statist" does not provide the option of setting the number of bars. How do I set the number of bars in a histogram?
Mar
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How to create two Windows in spatstat for the same dataset?

Spatial patterns: I have a dataset of coordinates and marks (diameter) attributed to the points. I am trying to create a window (owin()) for each plot (I have 2 plots), but I don't know how to set the window for both plots: My window: #data:…
Beloiu Mirela
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Can I compare Moran's I z-scores across areas?

I would like to compare the spatial clustering of elderly people (measured as percent of population age>64 in each census tract) across five cities. I have run "Spatial Stat. tools -> Spatial autocorrelation") and obtained a Moran's I z-score for…
user30236
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Is there really random distribution of points?

I'm just wondering if there is really such a thing as "random" in geography? To me it always seems like everything has a reason: examples: vegetation does not just randomly grow whether and climate changes have reasons and patterns population is…
Tim
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help identifying the right spatial analysis tool

Let's say I have a set of N towns and a road network that connects the towns. I think some towns might an influence on other towns because they meet some criterion. I have a binary indicator of this criterion (e.g., crit==1 or crit==0) for each…
Eric Green
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