Tools for Spatial Data

Documentation for package ‘fields’ version 8.10

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A B C D E F G H I K L M N O P Q R S T U V W X Y misc

fields-package

fields - tools for spatial data

-- A --

add.image	Adds an image to an existing plot.
arrow.plot	Adds arrows to a plot
as.image	Creates image from irregular x,y,z
as.surface	Creates an "surface" object from grid values.
average.image	Some simple functions for subsetting images

-- B --

BD	Data frame of the effect of buffer compositions on DNA strand displacement amplification. A 4-d regression data set with with replication. This is a useful test data set for exercising function fitting methods.
boxplotVGram	Traditional or robust variogram methods for spatial data
bplot	boxplot
bplot.xy	Boxplots for conditional distribution

-- C --

ChicagoO3	Data set of ozone measurements at 20 Chicago monitoring stations.
CO.elev	Monthly surface meterology for Colorado 1895-1997
CO.elevGrid	Monthly surface meterology for Colorado 1895-1997
CO.Grid	Monthly surface meterology for Colorado 1895-1997
CO.id	Monthly surface meterology for Colorado 1895-1997
CO.loc	Monthly surface meterology for Colorado 1895-1997
CO.names	Monthly surface meterology for Colorado 1895-1997
CO.ppt	Monthly surface meterology for Colorado 1895-1997
CO.ppt.MAM	Monthly surface meterology for Colorado 1895-1997
CO.ppt.MAM.climate	Monthly surface meterology for Colorado 1895-1997
CO.tmax	Monthly surface meterology for Colorado 1895-1997
CO.tmax.MAM	Monthly surface meterology for Colorado 1895-1997
CO.tmax.MAM.climate	Monthly surface meterology for Colorado 1895-1997
CO.tmean.MAM.climate	Monthly surface meterology for Colorado 1895-1997
CO.tmin	Monthly surface meterology for Colorado 1895-1997
CO.tmin.MAM	Monthly surface meterology for Colorado 1895-1997
CO.tmin.MAM.climate	Monthly surface meterology for Colorado 1895-1997
CO.years	Monthly surface meterology for Colorado 1895-1997
CO2	Simulated global CO2 observations
CO2.true	Simulated global CO2 observations
coef.Krig	Kriging surface estimate
color.scale	Some useful color tables for images and tools to handle them.
colorbar.plot	Adds color scale strips to an existing plot.
COmonthlyMet	Monthly surface meterology for Colorado 1895-1997
compactToMat	Convert Matrix from Compact Vector to Standard Form
cover.design	Computes Space-Filling "Coverage" designs using Swapping Algorithm
crop.image	Some simple functions for subsetting images
crossCoVGram	Traditional or robust variogram methods for spatial data
cubic.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.

-- D --

designer.colors	Some useful color tables for images and tools to handle them.
discretize.image	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.
drape.color	Perspective plot draped with colors in the facets.
drape.plot	Perspective plot draped with colors in the facets.

-- E --

Exp.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.
Exp.image.cov	Exponential, Matern and general covariance functions for 2-d gridded locations.
Exp.simple.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.
Exponential	Covariance functions
ExponentialUpper	Evaluate covariance over upper triangle of distance matrix

-- F --

fastTps	Thin plate spline regression
fastTps.MLE	Maximizes likelihood for the process marginal variance (rho) and nugget standard deviation (sigma) parameters (e.g. lambda) over a many covariance models or covariance parameter values.
fastTpsMLE	Maximizes likelihood for the process marginal variance (rho) and nugget standard deviation (sigma) parameters (e.g. lambda) over a many covariance models or covariance parameter values.
fields	fields - tools for spatial data
fields.color.picker	fields - graphics hints
fields.convert.grid	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.
fields.D	Wendland family of covariance functions and supporting numerical functions
fields.derivative.poly	Fields supporting functions
fields.diagonalize	Fields supporting functions
fields.diagonalize2	Fields supporting functions
fields.duplicated.matrix	Fields supporting functions
fields.evlpoly	Fields supporting functions
fields.evlpoly2	Fields supporting functions
fields.hints	fields - graphics hints
fields.mkpoly	Fields supporting functions
fields.pochdown	Wendland family of covariance functions and supporting numerical functions
fields.pochup	Wendland family of covariance functions and supporting numerical functions
fields.rdist.near	Euclidean distance matrix or vector
fields.style	fields - graphics hints
fields.tests	Testing fields functions
fields.x.to.grid	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.
fieldsPlotColors	Some useful color tables for images and tools to handle them.
fitted.Krig	Kriging surface estimate
flame	Response surface experiment ionizing a reagent

-- G --

gcv.Krig	Finds profile likelihood and GCV estimates of smoothing parameters for splines and Kriging.
gcv.sreg	Finds profile likelihood and GCV estimates of smoothing parameters for splines and Kriging.
get.rectangle	Some simple functions for subsetting images
getVGMean	Traditional or robust variogram methods for spatial data
grid list	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.
grid.list	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.

-- H --

half.image

Some simple functions for subsetting images

-- I --

image.plot	Draws image plot with a legend strip for the color scale based on either a regular grid or a grid of quadrilaterals.
image.smooth	Kernel smoother for irregular 2-d data
image2lz	Some simple functions for subsetting images
in.land.grid	Plot of the world
in.poly	Some simple functions for subsetting images
in.poly.grid	Some simple functions for subsetting images
interp.surface	Fast bilinear interpolator from a grid.
interp.surface.grid	Fast bilinear interpolator from a grid.

-- K --

Krig	Kriging surface estimate
Krig.Amatrix	Smoother (or "hat") matrix relating predicted values to the dependent (Y) values.
Krig.check.xY	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.coef	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.cor.Y	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.engine.default	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.engine.fixed	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.engine.knots	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.make.u	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.make.W	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.make.Wi	Basic linear algebra utilities and other computations supporting the Krig function.
Krig.null.function	Default function to create fixed matrix part of spatial process model.
Krig.replicates	Collapse repeated spatial locations into unique locations
Krig.transform.xY	Basic linear algebra utilities and other computations supporting the Krig function.

-- L --

larry.colors	Some useful color tables for images and tools to handle them.
lennon	Gray image of John Lennon.

-- M --

make.surface.grid	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.
Matern	Covariance functions
Matern.cor.to.range	Covariance functions
matern.image.cov	Exponential, Matern and general covariance functions for 2-d gridded locations.
MaternGLS.test	Maximum Likelihood estimates for some Matern covariance parameters.
MaternGLSProfile.test	Maximum Likelihood estimates for some Matern covariance parameters.
MaternQR.test	Maximum Likelihood estimates for some Matern covariance parameters.
MaternQRProfile.test	Maximum Likelihood estimates for some Matern covariance parameters.
minitri	Mini triathlon results
mKrig	"micro Krig" Spatial process estimate of a curve or surface, "kriging" with a known covariance function.
mKrig.coef	"micro Krig" Spatial process estimate of a curve or surface, "kriging" with a known covariance function.
mKrig.grid	Using MKrig for predicting on a grid.
mKrig.MLE	Maximizes likelihood for the process marginal variance (rho) and nugget standard deviation (sigma) parameters (e.g. lambda) over a many covariance models or covariance parameter values.
mKrig.MLE.joint	Maximizes likelihood for the process marginal variance (rho) and nugget standard deviation (sigma) parameters (e.g. lambda) over a many covariance models or covariance parameter values.
mKrig.trace	"micro Krig" Spatial process estimate of a curve or surface, "kriging" with a known covariance function.
mKrigCheckXY	"micro Krig" Spatial process estimate of a curve or surface, "kriging" with a known covariance function.
mKrigJointTemp.fn	Maximizes likelihood for the process marginal variance (rho) and nugget standard deviation (sigma) parameters (e.g. lambda) over a many covariance models or covariance parameter values.
mKrigMLEGrid	Maximizes likelihood for the process marginal variance (rho) and nugget standard deviation (sigma) parameters (e.g. lambda) over a many covariance models or covariance parameter values.
mKrigMLEJoint	Maximizes likelihood for the process marginal variance (rho) and nugget standard deviation (sigma) parameters (e.g. lambda) over a many covariance models or covariance parameter values.
MLE.Matern	Maximum Likelihood estimates for some Matern covariance parameters.
MLE.Matern.fast	Maximum Likelihood estimates for some Matern covariance parameters.
MLE.objective.fn	Maximum Likelihood estimates for some Matern covariance parameters.
MLESpatialProcess	Estimates key covariance parameters for a spatial process.

-- N --

NorthAmericanRainfall

Observed North American summer precipitation from the historical climate network.

-- O --

ozone	Data set of ozone measurements at 20 Chicago monitoring stations.
ozone2	Daily 8-hour ozone averages for sites in the Midwest

-- P --

parse.grid.list	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.
plot.Krig	Diagnostic and summary plots of a Kriging, spatialProcess or spline object.
plot.spatialProcess	Estimates a spatial process model.
plot.sreg	Diagnostic and summary plots of a Kriging, spatialProcess or spline object.
plot.surface	Plots a surface
plot.vgram	Traditional or robust variogram methods for spatial data
plot.vgram.matrix	Computes a variogram from an image
poly.image	Image plot for cells that are irregular quadrilaterals.
poly.image.regrid	Image plot for cells that are irregular quadrilaterals.
predict.fastTps	Evaluation of Krig spatial process estimate.
predict.Krig	Evaluation of Krig spatial process estimate.
predict.mKrig	"micro Krig" Spatial process estimate of a curve or surface, "kriging" with a known covariance function.
predict.sreg	Cubic smoothing spline regression
predict.surface	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
predict.Tps	Evaluation of Krig spatial process estimate.
predictDerivative.Krig	Evaluation of Krig spatial process estimate.
predictSE	Standard errors of predictions for Krig spatial process estimate
predictSE.Krig	Standard errors of predictions for Krig spatial process estimate
predictSE.mKrig	Standard errors of predictions for Krig spatial process estimate
predictSEUsingKrigA	Standard errors of predictions for Krig spatial process estimate
predictSurface	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
predictSurface.default	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
predictSurface.fastTps	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
predictSurface.Krig	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
predictSurface.mKrig	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
predictSurfaceSE	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
predictSurfaceSE.default	Evaluates a fitted function or the prediction error as a surface that is suitable for plotting with the image, persp, or contour functions.
print.Krig	Print kriging fit results.
print.mKrig	"micro Krig" Spatial process estimate of a curve or surface, "kriging" with a known covariance function.
print.spatialProcess	Estimates a spatial process model.
PRISMelevation	Monthly total precipitation (mm) for August 1997 in the Rocky Mountain Region and some gridded 4km elevation data sets (m).
pushpin	Adds a "push pin" to an existing 3-d plot

-- Q --

qsreg	Quantile or Robust spline regression
QTps	Robust and Quantile smoothing using a thin-plate spline
quilt.plot	Image plot for irregular spatial data.

-- R --

Rad.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.
Rad.image.cov	Exponential, Matern and general covariance functions for 2-d gridded locations.
Rad.simple.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.
RadialBasis	Covariance functions
rat.diet	Experiment studying an appetite supressant in rats.
RCMexample	3-hour precipitation fields from a regional climate model
rdist	Euclidean distance matrix or vector
rdist.earth	Great circle distance matrix or vector
rdist.earth.vec	Great circle distance matrix or vector
rdist.vec	Euclidean distance matrix or vector
REML.test	Maximum Likelihood estimates for some Matern covariance parameters.
resid.Krig	Kriging surface estimate
ribbon.plot	Adds to an existing plot, a ribbon of color, based on values from a color scale, along a sequence of line segments.
RMelevation	Monthly total precipitation (mm) for August 1997 in the Rocky Mountain Region and some gridded 4km elevation data sets (m).
RMprecip	Monthly total precipitation (mm) for August 1997 in the Rocky Mountain Region and some gridded 4km elevation data sets (m).

-- S --

set.panel	Specify a panel of plots
setup.image.smooth	Kernel smoother for irregular 2-d data
sim.fastTps.approx	Conditional simulation of a spatial process
sim.Krig	Conditional simulation of a spatial process
sim.Krig.approx	Conditional simulation of a spatial process
sim.mKrig.approx	Conditional simulation of a spatial process
sim.rf	Simulates a Stationary Gaussian random field
sim.spatialProcess	Conditional simulation of a spatial process
smooth.2d	Kernel smoother for irregular 2-d data
spam2full	Conversion of formats for sparse matrices
spam2spind	Conversion of formats for sparse matrices
spatialProcess	Estimates a spatial process model.
spind2full	Conversion of formats for sparse matrices
spind2spam	Conversion of formats for sparse matrices
splint	Cubic spline interpolation
sreg	Cubic smoothing spline regression
stationary.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.
stationary.image.cov	Exponential, Matern and general covariance functions for 2-d gridded locations.
stationary.taper.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.
stats	Calculate summary statistics
stats.bin	Bins data and finds some summary statistics.
summary.Krig	Summary for Krig or spatialProcess estimated models.
summary.mKrig	"micro Krig" Spatial process estimate of a curve or surface, "kriging" with a known covariance function.
summary.ncdf	Summarizes a netCDF file handle
summary.spatialProcess	Summary for Krig or spatialProcess estimated models.
supportsArg	Tests if function supports a given argument
surface.Krig	Plots a surface and contours
surface.mKrig	Plots a surface and contours

-- T --

test.for.zero	Testing fields functions
tim.colors	Some useful color tables for images and tools to handle them.
Tps	Thin plate spline regression
transformx	Linear transformation
two.colors	Some useful color tables for images and tools to handle them.

-- U --

unrollZGrid	Some simple functions for working with gridded data and the grid format (grid.list) used in fields.
US	Plot of the US with state boundaries
US.dat	Outline of coterminous US and states.

-- V --

vgram	Traditional or robust variogram methods for spatial data
vgram.matrix	Computes a variogram from an image

-- W --

Wendland	Wendland family of covariance functions and supporting numerical functions
Wendland.beta	Wendland family of covariance functions and supporting numerical functions
wendland.cov	Exponential family, radial basis functions,cubic spline, compactly supported Wendland family and stationary covariances.
wendland.eval	Wendland family of covariance functions and supporting numerical functions
wendland.image.cov	Exponential, Matern and general covariance functions for 2-d gridded locations.
Wendland2.2	Wendland family of covariance functions and supporting numerical functions
world	Plot of the world
world.color	Plot of the world
world.land	Plot of the world
WorldBankCO2	Carbon emissions and demographic covariables by country for 1999.

-- X --

xline

Draw a vertical line

-- Y --

yline

Draw horizontal lines

-- misc --

%d*%	Basic linear algebra utilities and other computations supporting the Krig function.