There are currently twelve functions that are defined to carry out
operations on point, pairs, variogram, and variogram.model
objects. The functions are listed in the table below in the general
order in which they are used. For each function, the table lists the
function name, the class of the primary input object, the class of the
value of the function (i.e., returned value) and a brief description
of the operation carried out. Click on a function name in the table to
see the documentation for that function and examples.
Function Name |
Class of input object |
Class of output object |
Operation |
---|---|---|---|
point | data.frame | point | create an object of class point from a data frame |
plot.point | point | plot the spatial locations, optionally coloring by quantile | |
identify.point | point | interactively query a plot of a point object, displaying attribute values | |
print.point | point | print descriptive information about an object of class point | |
pairs | point | pairs | create a pairs structure from an object of class point |
print.pairs | pairs | print descriptive information about an object of class pairs | |
lagplot | point, pairs | plot a scatter plot of attribute values at one location versus attriubte values at another location, optionally allowing for interactive query | |
spacecloud | point, pairs | plot a variogram cloud plot, optionally allowing for interactive query | |
spacebox | point, pairs | plot a boxplot of the variogram cloud plot | |
variogram | point, pairs | variogram | calculate empirical variogram estimates |
plot.variogram | variogram | plot empirical variogram estimates, optionally plotting a fitted variogram model | |
fit.exponential | variogram | variogram.model | fit an exponential variogram model to empirical variogram estimates |
krige | point(2), variogram.model | point | carry out spatial prediction (on points) |
S+ GeoStat | Introduction | OOPLa | Data Structures | Functions | Download |