A statistical interpolation method, also known as Gaussian process regression, most used in geo-statistics. The goal is to map a surface given limited sample data. The process evaluates the variability of supplied data, then uses a weighted average of neighbouring points -- considering both distance and direction -- to interpolate the desired map points.
Questions tagged [kriging]
186 questions
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Understadning Krige.bayes() output
I am struggling with the Krige.bayes() function in the GeoR package. I was hoping to create a map with my output from the function but I can't seem to find a way to do this. The online pdf (https://cran.r-project.org/web/packages/geoR/geoR.pdf) of…
RW1201
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Cross variogram negative : flip upside down
Using the "Cokriging" method, I first did a cross variogram. However, I had a negative relationship between my two variables taken, which led to the variogram crossed upside down. I was wondering if it was possible to overthrow it so that it would…
Vulraan
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calculate R2, RMSE, and MAE for cv.krige (gstat) - R
The aim is to get the R2, RMSE, and MAE summaries for the cv.krige with leave-one-out cross validation. To illustrate I have the following code (please note that a random dataset is created and that metrics are poor):
library(Metrics)
library(nlme)…
Foeke Boersma
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Ways to plot 3D variogram
I am trying to plot 3D variogram of porosity taking X and Y as coordinates and z as time. Can someone help me out to find a way to plot 3D variogram?
I have tried with GSTools, pykridge, GStat.
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How to build a variogram for soil properties
I'm a new user of R, which I use in my studies in digital soil mapping. I have my data, as you can see in my .csv file. There are columns SN (sample number), SAND, SILT, CLAY, OM (Organic Matter). I am trying to create a variogram for each property.…
Dimitris K
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Ordinary kriging interpolation in a shape file by providing data from csv
I have data of soil property in csv file with lat long and a shape file in which i want to interpolate data by ordinary kriging, i want to make python script
SK Rizvi
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Refine Spatial Interpolation in Python Script to give better results
I have an XYZ dataset containing 36,000 points in which I'd like to interpolate via the method of kriging
I needed an open source way in Python to do Kriging interpolation, so decided to try PyKrige. I tried the below script
import numpy as…
GIS_User2
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printing Kriging rmse value from an object
I am working on surrogate modeling and having a problem with printing rmse value of the kriging surrogate object. It is inside an optimizer class and I want to print out rmse like in the last code in the documentation here.
Code is here
surr is the…
tufan
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Error in (function (classes, fdef, mtable) unable to find an inherited method for function ‘krige’ for signature ‘"formula", "tbl_df"’
I have a strange Error and actually don't know how to solve it, even after checking other posts. Everything runs until the Kriging and then I receive the error: Error in (function (classes, fdef, mtable) unable to find an inherited method for…
Tapsi
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is there any interpolation method in python which is similar to Empirical Bayesian Kriging?
EBK Regression Prediction is ESRI propriety tool for interpolation. But I am looking for some open source solution with same method Empirical Bayesian Kriging. I have 10 location rainfall data. I want to interpolate the data to fill the gap in…
sachin jain
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Kriging (Gaussian Process Regression) in SciKit-Learn - access to optimized theta values
How can I access the 'optimized' thetas from the GPR (Kriging-type) in scikit-learn? I want to get the theta for each of the variable/parameter, to verify the influence of those variables/parameters on the model's output.
I have tried the following…
prz
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Kriging with gstat in R: Resulting object is blank with no interpolated values
I have kriged a dataset with the gstat package in R, but it has produced an empty variable as a result. I have 1,167 measurement points within a field, and I am trying to interpolate them across 3,464 interpolation points within the same field. How…
ihb
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Kriging using the gstat and automap packages - problems when copying a tutorial
For several locations in my study site i have water depth (m) data, and i'm trying to use kriging to interpolate depth to locations for which i do not have data. I found a useful blog post written by Dr. Wilke here, and tried to apply his code to my…
FlyingDutch
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Cokrigging in R
I have tried to Cokrig based on the following code and everything seems to work upto fitting of coV and there was an error when I try to generate the interpolation. Here is the code that I accustomed to my…
Yon Balcha
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Kriging not working in R studio: method not applicable st_crs
I have been working on an exercise using Rstudio. I want to do a kriging interpolation, but I get an error that I have not been able to solve.
I'd appreciate if some of you could tell me how to fix it.
Here my code:
#importing…
Edmundo
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