On this Picostat.com statistics page, you will find information about the farms data set which pertains to Ecological Factors in Farm Management. The farms data set is found in the MASS R package. You can load the farms data set in R by issuing the following command at the console data("farms"). This will load the data into a variable called farms. If R says the farms data set is not found, you can try installing the package by issuing this command install.packages("MASS") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the farms R data set. The size of this file is about 430 bytes.
Ecological Factors in Farm Management
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.
This data frame contains the following columns:
Five levels of soil moisture – level 3 does not occur at these 20 farms.
Grassland management type (
SF = standard,
BF = biological,
HF = hobby farming,
NM = nature conservation).
Grassland use (
U1 = hay production,
U3 = grazing).
Manure usage – classes
J.C. Gower and D.J. Hand (1996) Biplots. Chapman & Hall, Table 4.6.
Quoted as from:
R.H.G. Jongman, C.J.F. ter Braak and O.F.R. van Tongeren (1987)
Data Analysis in Community and Landscape Ecology.
Venables, W. N. and Ripley, B. D. (2002)
Modern Applied Statistics with S. Fourth edition. Springer.
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)[], cex = 0.7)
Dataset imported from https://www.r-project.org.