cuckoohosts {DAAG} | R Documentation |

## Comparison of cuckoo eggs with host eggs

### Description

These data compare mean length, mean breadth, and egg color, between cuckoos and their hosts.

### Usage

`cuckoohosts`

### Format

A data frame with 10 observations on the following 12 variables.

- clength
mean length of cuckoo eggs in given host's nest

- cl.sd
standard deviation of cuckoo egg lengths

- cbreadth
mean breadth of cuckoo eggs in given host's nest

- cb.sd
standard deviation of cuckoo egg breadths

- cnum
number of cuckoo eggs

- hlength
length of host eggs

- hl.sd
standard deviation of host egg lengths

- hbreadth
breadth of host eggs

- hb.sd
standard deviation of host egg breadths

- hnum
number of host eggs

- match
number of eggs where color matched

- nomatch
number where color did not match

### Details

Although from the same study that generated data in the data frame
`cuckoos`

, the data do not match precisely. The cuckoo egg
lengths and breadths are from the tables on page 168, the host egg
lengths and breadths from Appendix IV on page 176, and the color
match counts from the table on page 171.

### Source

Latter, O.H., 1902.
The egg of *cuculus canorus*. an inquiry into the dimensions of
the cuckoo's egg and the relation of the variations to the size of the eggs
of the foster-parent, with notes on coloration, &c.
*Biometrika*, 1:164–176.

### Examples

```
cuckoohosts
str(cuckoohosts)
plot(cuckoohosts)
with(cuckoohosts,
plot(c(clength,hlength),c(cbreadth,hbreadth),col=rep(1:2,c(6,6))))
```

*DAAG*version 1.25.6 Index]