point {sgeostat}R Documentation

Point Object

Description

Create an object of class point from a data frame.

An object of class point represents the observed data of a spatial process. This includes the spatial location of sampling sites and the values observed at those sites. A point object is stored as a data frame. The data frame must contain one column for the X coordinate and one column for the Y coordinate of each point, as well as any number of columns representing data observed at the points.

Usage

point(dframe, x='x', y='y')

Arguments

dframe a data frame containing the x and y coordinates for each point and the variables observed at each point
x the name of the column in dframe that contains the x coordinate
y the name of the column in dframe that contains the y coordinate

Value

A point object:

x vector of x coordinates
y vector of ycoordinates
var1 vector of the first variable
... ...
varm vector of the mth variable

References

http://www.gis.iastate.edu/SGeoStat/homepage.html

See Also

point

Examples

data(maas)
maas.point <- point(maas)
[Package sgeostat version 1.0-20 Index]