plot.preCKrigePolygons {constrainedKriging} | R Documentation |

## Plotting a Polygon Neighbourhood Configuration

### Description

Plotting method for objects of the class
“`preCKrige.polygons`

”. The plot shows the polygon
neighbourhood configuration for one polygon (block) in a
`preCKrige.polygons`

object as well as its representation by the
pixels.

### Usage

```
## S3 method for class 'preCKrigePolygons'
plot(x, index, ...)
```

### Arguments

`x` |
an object of the class “ |

`index` |
a numeric scalar with the index of the desired polygon
(block) in the list of polygons |

`...` |
further plotting parameters. |

### Value

No return value, called for side effects.

### Author(s)

Christoph Hofer, christoph.hofer@alumni.ethz.ch

### References

Hofer, C. and Papritz, A. (2011). constrainedKriging: an R-package
for customary, constrained and covariance-matching constrained point
or block Kriging. *Computers & Geosciences*. **37**, 1562–1569,
doi:10.1016/j.cageo.2011.02.009.

### See Also

`preCKrige`

and `preCKrigePolygons`

.

### Examples

```
### load data
data(meuse, package = "sp")
data(meuse.blocks)
### plot blocks
plot(meuse.blocks)
### compute the approximated block variance of each block in
### meuse.blocks without the definition of neighbours blocks (default)
preCK_1 <- preCKrige(newdata = meuse.blocks,
model = covmodel("exponential", 0.05, 0.15, scale = 192.5),
pwidth = 75, pheight = 75)
### plot block approximation of block 59
plot(preCK_1, 59)
### define neighbours
if(!requireNamespace("spdep", quietly = TRUE)){
stop("install package spdep to run example")
}
neighbours <- spdep::poly2nb(meuse.blocks)
class(neighbours)
### neighbours should be an object of the class "list"
class(neighbours) <- "list"
### compute the approximated block variance-covariance matrices of each block in
### meuse.blocks without the defined block neighbours
preCK_2 <- preCKrige(newdata = meuse.blocks, neighbours = neighbours,
model = covmodel("exponential", 0.05, 0.15, scale = 192.5),
pwidth = 75, pheight = 75)
### plot block approximation of block 59 and its
### block neighbours
plot(preCK_2, 59)
```

*constrainedKriging*version 0.2-7 Index]