# isaaks: Data from Isaaks and Srisvastava's book In geoR: Analysis of Geostatistical Data

## Description

Toy example used in the book An Introduction to Geostatistics to illustrate the effects of different models and parameters in the kriging results when predicting at a given point.

## Usage

 `1` ```data(isaaks) ```

## Format

An object of the class `geodata` which is a list with the elements:

coords

coordinates of the data location.

data

the data vector.

x0

coordinate of the prediction point.

## Source

Isaaks, E.H. & Srisvastava, R.M. (1989) An Introduction to Applied Geostatistics. Oxford University Press.

## Examples

 ```1 2 3 4 5``` ```isaaks summary(isaaks) plot(isaaks\$coords, asp=1, type="n") text(isaaks\$coords, as.character(isaaks\$data)) points(isaaks\$x0, pch="?", cex=2, col=2) ```

### Example output

```--------------------------------------------------------------
Analysis of Geostatistical Data
For an Introduction to geoR go to http://www.leg.ufpr.br/geoR
geoR version 1.8-1 (built on 2020-02-08) is now loaded
--------------------------------------------------------------

Warning message:
no DISPLAY variable so Tk is not available
\$coords
[,1] [,2]
[1,]   61  139
[2,]   63  140
[3,]   64  129
[4,]   68  128
[5,]   71  140
[6,]   73  141
[7,]   75  128

\$data
[1] 477 696 227 646 606 791 783

\$x0
[,1] [,2]
[1,]   65  137

attr(,"class")
[1] "geodata"
Number of data points: 7

Coordinates summary
Coord.X Coord.Y
min      61     128
max      75     141

Distance summary
min       max
2.236068 17.804494

Data summary
Min.  1st Qu.   Median     Mean  3rd Qu.     Max.
227.0000 541.5000 646.0000 603.7143 739.5000 791.0000

Other elements in the geodata object
[1] "x0"
```

geoR documentation built on Feb. 11, 2020, 1:11 a.m.