geoCount (version 1.150120)

Rhizoc: Rhizoc Data

Description

This data set contains the Rhizoc data set.

Usage

Rhizoc

Value

A data.frame with 100 observations and 5 variables.

Details

This dataset appeared Zhang (2002) and was modeled using the Binomial Logit-normal spatial model. It consists of counts of the root disease Rhizoctonia root rot present in barey plants collected at 100 locations in the Cunningham farm in the north-west of the U.S. The sampling consisted on pulling from the ground 15 plants at each location. This dataset is a 100 by 4 matrix with rows $(x_i , y_i , t_i)$, where $x_i$ are the coordinates of the i$^{th}$ sampling location, $y_i$ is the total number of infected crown roots in the pulled plants at $x_i$, and $t_i$ is the total number of crown roots in the pulled plants at $x_i$; see Zhang (2002) for further details.

See Also

plotData.

Examples

## Not run: 
# data(Rhizoc)
# str(Rhizoc)
# plotData(Rhizoc[,3], Rhizoc[,1:2], Rhizoc[,4], Rhizoc[,1:2],
#          xlab="Eastings", ylab="Northings")
# ## End(Not run)