MASS (version 7.3-53.1)

farms: Ecological Factors in Farm Management

Description

The farms data frame has 20 rows and 4 columns. The rows are farms on the Dutch island of Terschelling and the columns are factors describing the management of grassland.

Usage

farms

Arguments

Format

This data frame contains the following columns:

Mois

Five levels of soil moisture -- level 3 does not occur at these 20 farms.

Manag

Grassland management type (SF = standard, BF = biological, HF = hobby farming, NM = nature conservation).

Use

Grassland use (U1 = hay production, U2 = intermediate, U3 = grazing).

Manure

Manure usage -- classes C0 to C4.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

Examples

Run this code
# NOT RUN {
farms.mca <- mca(farms, abbrev = TRUE)  # Use levels as names
eqscplot(farms.mca$cs, type = "n")
text(farms.mca$rs, cex = 0.7)
text(farms.mca$cs, labels = dimnames(farms.mca$cs)[[1]], cex = 0.7)
# }

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