Questions tagged [geography]

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Fitting a von Mises Distribution over the Global Population

For a statistics course I'm taking this semester, we decided to conduct a worldwide survey. One of our questions, is an approximate coordinate of where the respondent lives. Our instructor recently ...
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3 votes
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A reference request for a population statistic---experienced population density?

We all know that countries (for example) have population densities, but suppose we want to know what is the actual experienced population density (that is, if, say, in Sweden 95% of the population ...
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2 votes
1 answer
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Years as continuous variable [duplicate]

Can I use "years" as a continuous variable ("years" as calendar years from 1984 to 2014) to see if NDVI (normalized difference vegetation index), of the same area at the same time (...
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How to assess geographical representativity of a sub-area?

My geographical zone $A$ is subdivided in $k$ different types of areas: $A_1 + A_2 + \dots{} + A_k = A$. These have been measured on a map with neglictible uncertainty: i.e. for any point on the map, ...
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Best model for geographical distribution of a characteristic prevalence?

I've data about the presence of a specific allele E4 among different geographical region populations (e.g. nord,...
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A descriptive geographic statistics, or descriptive arithmetics question

[Please point me to a more statistical/arithmetical part of stack exchange if there is one. I can't find it] Country A has 16 million inhabitants and 2.000 MW of solar panel generated power, also a ...
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2 votes
3 answers
734 views

Testing Hypothesis with Time series and Location Data

I have Data on Prices of house. Along with these variables. 1) Location i)Latitude-Longitude ii)City and State 2) Attribute of house. ...
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100 views

Density on Worldmap based on Relative Frequency [closed]

I'm trying to plot a 2d density on a worldmap. The problem is most of my points are around the same coordinates. My current map looks like this: Code for map: ...
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How do I compare two geographic datasets with differing subdivisions?

Suppose I'm trying to figure out the relationship between home-ownership and wine drinking. My information on where home-owners live comes from the census, and it divides a given geographical area up ...
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1 answer
691 views

Correlation Between Locations

I have two data sets both matrices of latitudes and longitudes. $A = [(X,Y),(X_2,Y_2)]$ $B = [(X_3,Y_3),(X_4,Y_4),(X_5,Y_5)]$ They are of different sizes I want to calculate by how much each of ...
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167 views

Input geolocation Data in Neural Network

I am working on a Neural Network that should predict certain transport-tariffs based on start and end region of the transport. The region can take different forms, from a whole country to a range of ...
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Clustering/pairing users based on multiple lat/lon values?

I have a data set that contains entities and lat/lon values for each one, potentially multiple lat/lon values. I believe that some of these entities may actually be the same person, although I can't ...
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How to predict the Geo-data such as elevation, given a set of data for training, what would be the best approach?

Lets say that I would like to predict or forecast the elevation of a certain coordinate on a map. What I have is the data of random points in, lets say, 50km radius from the point I would like to ...
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2 votes
1 answer
190 views

What is the right way to incorporate geographic data into a prediction?

Illustrative Problem I have a number of geographically dispersed stores where I would like to understand what factors predict revenue. Each store has certain properties (sq ft, age, employees, etc.). ...
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Finding the non-linear curve that minimize the (sum of squared) distance to a set of point

I'm looking for the best approach to find the non-linear curve that minimize the mean square of perpendicular distance from a set of points. In essence, I would like to do non-linear major axis ...
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3 answers
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Averaging predictions from two different models

First, a short introduction. I am predicting latitude/longitude using Random Forests and XGBoost based on several environmental variables and custom features such as cluster IDs (there are obvious ...
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2 votes
1 answer
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ML model selection for prediction of latitude and longitude

I am doing a project in which my aim is to predict the likely locations of a set of latitude/longitude points based on a couple of variables. Since I've never done any ML on locational data, which ...
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How to compare number of incidents in different geographical areas when they have different population size?

I'm trying to make comparisons between number of incidents that happened in different zip codes. The goal is to figure out whether those incidents happen more frequently in certain areas than others. ...
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How to incorporate intraspecific variation in discrete characters in comparative analysis?

I'd like to run a multivariate analysis (Pavoine et al. 2011) that aims to disentagle the effect of environmental gradients on traits, considering its autocorrelation with phylogeny and space. It uses ...
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11 votes
1 answer
2k views

What is the proper way of calculating the kernel density estimate from geographical coordinates?

I have to calculate the 2d kernel density estimate (kde) from a list of latitude and longitude coordinates. But one degree in latitude is not the same distance as one degree in longitude, this means ...
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2 votes
2 answers
765 views

Predicting lat/long from binary features

I have a number of observations that occur around my city (a small area), and several of them have latitude and longitude. I have been looking into predicting the latitude/longitude of the ...
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1 vote
1 answer
96 views

Measuring rurality

An inhabitant of Vermont boasted on his web site that that is the most rural of all the fifty states. But Alaska, with fewer than a million people in an area bigger than France, has a far lower ...
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3 votes
1 answer
306 views

Partial correlations among three distance matrices

I am trying to test the hypothesis that related species should deviate more in niche space the more they overlap in geographic space. In other words, related species either forage similarly and don't ...
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