Questions tagged [variogram]
A function describing the degree of spatial dependence of a spatial random field or stochastic process
55 questions
10
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1
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Interpreting semivariogram with high nugget effect?
I made a semivariogram in R using package gstat, variogram() function. I want to see if there is spatial autocorrelation in the residuals of my model (species abundance as a function of habitat, ...
3
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1
answer
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Variogram for data along linear routes
I have a dataset of some measurements along a bus route (image below). The purpose of my study is to be able to detect the values at any location along the route using Kriging interpolation. I have ...
2
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1
answer
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Getting range value from exponential variogram model
I am using vgm() from the gstat library in R:
variogr <-vgm(sill,"Exp",range=range,nugget=0)
output <-krige(...,model=variogr)
As you can see I'm using fixed psill and range values.
Before ...
3
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0
answers
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Visualize smoke dispersion by interpolating point data [closed]
During the last weeks, I am trying to develop an application within my current working project, which aims to simulate smoke dispersion of fire incidents.
Software used: ArcGIS for Desktop/Server (...
2
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1
answer
314
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weighting scheme of gstat for fitting models to variograms
I use R and the gstat package to construct variograms of temperature, and I would like to ask If anyone knows what weighting scheme does the gstat package use to fit a model to the sample variogram?