intgrd-class

intgrd

An interval extension of a SpatialPixelsDataFrame

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

intgrd-class function

<dl>
<dt><code>interval</code></dt>
<dd>A matrix of two columns representing the lower and upper
endpoints of an interval.</dd></dl>

Slots

An interval extension of a SpatialPixelsDataFrame — intgrd-class

<dl>
<dt><code>interval</code></dt>
<dd>A matrix of two columns representing the lower and upper
endpoints of an interval.</dd>


</dl>

intgrd-class: An interval extension of a SpatialPixelsDataFrame

Description

Arguments

Slots