barley {vis} | R Documentation |
Data frame with components: yield, variety, year, and site, giving barley yields (bushels/acre) in 1931 and 1932 for 10 varieties of barley grown at 6 sites.
data(barley)
A data frame with 120 observations on the following 4 variables.
yield
variety
Svansota
< No. 462
< Manchuria
< No. 475
< Velvet
< Peatland
< Glabron
< No. 457
< Wisconsin No. 38
< Trebi
year
1932
< 1931
site
Grand Rapids
< Duluth
< University Farm
< Morris
< Crookston
< Waseca
Cleveland (1993) suggests the years 1931 and 1932 have been exchanged for Morris.
All of the data sets from Cleveland (1993) can be obtained from Statlib by email or ftp. Send the message "send visualizing.data from S" to statlib@lib.stat.cmu.edu, or access lib.stat.cmu.edu by ftp, log in as statlib, and retrieve the file S/visualizing.data. trellis.datasets S-PLUS Language Reference S-Plus, trellis.datasets
Cleveland, William S. (1993). Visualizing Data. Hobart Press, Summit, New Jersey.
data(barley)