Cuckoo Egg Data

Cuckoo's lay their eggs in the nests of other birds, and are believed to return to the same area each year, and prefer to choose the same host species repeatedly.

source: L.H.C. Tippett, The Methods of Statistics, 4th Edition, John Wiley andSons, Inc., 1952, p. 176, via Statlib Data and Story Library.

You can copy and paste the data structure into your R session. The names of the variables are EggSize and Host.

"CuckooEggs" <-
structure(list(Host = structure(c(2, 2, 2, 2, 2, 2, 2, 2, 2, 
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 5, 5, 5, 5, 5, 5, 
5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
1, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 6, 6, 6, 6, 6, 6, 6, 6, 6, 
6, 6, 6, 6, 6, 6), .Label = c("HedgeSparrow", "MeadowPipit", 
"PiedWagtail", "Robin", "TreePipit", "Wren"), class = "factor"), 
    EggSize = c(19.65, 20.05, 20.65, 20.85, 21.65, 21.65, 21.65, 
    21.85, 21.85, 21.85, 22.05, 22.05, 22.05, 22.05, 22.05, 22.05, 
    22.05, 22.05, 22.05, 22.05, 22.25, 22.25, 22.25, 22.25, 22.25, 
    22.25, 22.25, 22.25, 22.45, 22.45, 22.45, 22.65, 22.65, 22.85, 
    22.85, 22.85, 22.85, 23.05, 23.25, 23.25, 23.45, 23.65, 23.85, 
    24.25, 24.45, 21.05, 21.85, 22.05, 22.45, 22.65, 23.25, 23.25, 
    23.25, 23.45, 23.45, 23.65, 23.85, 24.05, 24.05, 24.05, 20.85, 
    21.65, 22.05, 22.85, 23.05, 23.05, 23.05, 23.05, 23.45, 23.85, 
    23.85, 23.85, 24.05, 25.05, 21.05, 21.85, 22.05, 22.05, 22.05, 
    22.25, 22.45, 22.45, 22.65, 23.05, 23.05, 23.05, 23.05, 23.05, 
    23.25, 23.85, 21.05, 21.85, 21.85, 21.85, 22.05, 22.45, 22.65, 
    23.05, 23.05, 23.25, 23.45, 24.05, 24.05, 24.05, 24.85, 19.85, 
    20.05, 20.25, 20.85, 20.85, 20.85, 21.05, 21.05, 21.05, 21.25, 
    21.45, 22.05, 22.05, 22.05, 22.25)), .Names = c("Host", "EggSize"
), class = "data.frame", row.names = c("1", "2", "3", "4", "5", 
"6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", 
"17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", 
"28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", 
"39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", 
"50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "60", 
"61", "62", "63", "64", "65", "66", "67", "68", "69", "70", "71", 
"72", "73", "74", "75", "76", "77", "78", "79", "80", "81", "82", 
"83", "84", "85", "86", "87", "88", "89", "90", "91", "92", "93", 
"94", "95", "96", "97", "98", "99", "100", "101", "102", "103", 
"104", "105", "106", "107", "108", "109", "110", "111", "112", 
"113", "114", "115", "116", "117", "118", "119", "120"))