as.data.frame

as.data.frame,intgrd-method

as.data.frame,intsp-method

Convert intgrd or intsp object back to a data frame

An interval-valued extension of ordinary and simple kriging.
Optimization of the function is based on a generalized interval distance.
This creates a non-differentiable cost function that requires a
differentiable approximation to the absolute value function. This
differentiable approximation is optimized using a Newton-Raphson algorithm
with a penalty function to impose the constraints. Analyses in the package
are driven by the 'intsp' and 'intgrd'
classes,
which are interval-valued extensions of
'SpatialPointsDataFrame' and 'SpatialPixelsDataFrame' respectively.
The package includes several wrappers to functions in the
'gstat' and 'sp' packages.

Brennan Bean

intkrige

A Numerical Implementation of Interval-Valued Kriging

as.data.frame function

<dl><dt>x</dt>
<dd>An object of class <code>intsp</code> or class <code>intgrd</code>.</dd></dl>

Arguments

Convert intgrd or intsp object back to a data frame — as.data.frame

<dl>

<dt>x</dt>
<dd>An object of class <code>intsp</code> or class <code>intgrd</code>.</dd>

</dl>

as.data.frame: Convert intgrd or intsp object back to a data frame

Description

Usage

Value

Arguments