# soja98

##### Soya bean production and other variables in a uniformity trial

Data on soya bean production in a uniformity trial measured at plots of size 5x5 meters and other soil properties measured in points given by the data coordinates.

- Keywords
- datasets

##### Usage

`data(soja98)`

##### Format

A data frame with 256 observations on the following 10 variables.

`X`

a numeric vector with X-coordinates of the plot centres.

`Y`

a numeric vector with X-coordinates of the plot centres.

`P`

a numeric vector, phosphorous content.

`PH`

a numeric vector, soil pH.

`K`

a numeric vector, potassium content. (Cmol/dm^3)

`MO`

a numeric vector, organic matter. (percentage)

`SB`

a numeric vector, basis saturation.

`iCone`

a numeric vector, cone index, measuring mechanic resistence of the soil. (kg/cm^2)

`Rend`

a numeric vector, total soya production within the plot (kg).

`PROD`

a numeric vector, production converted to productivity by a unit of area - hectare (ton/ha).

##### Examples

```
# NOT RUN {
data(soja98)
plot(soja98)
require(geoR)
prod98 <- as.geodata(soja98, coords.col=1:2, data.col=)
plot(prod98, low=TRUE)
# }
```

*Documentation reproduced from package geoR, version 1.8-1, License: GPL (>= 2)*