germBin | R Documentation |

In an experiment, the number of seeds germination was recorded for two types of seeds and two types of root extracts

data(germ)

A data frame with 831 observations on the following 3 variables.

`Extract`

the extract type; a factor with levels

`Bean`

and`Cucumber`

`Seeds`

the type of seed; a factor with levels

`OA75`

(*O. aegyptiaca 75*) and`OA73`

(*O. aegyptiaca 73*)`Result`

the result of the experiment: either

`Germ`

(the seed germinated) or`NotGerm`

(the seed did not germinate)

The data gives the total number of seeds and the number germinating, for two types of seeds and two types of root stocks; the dilution is 1 in 25 in all cases.

These data are the same as `germ`

but with one row for each seed.

Martin J. Crowder (1978)
Beta-binomial anova for proportions.
*Applied Statistics*,
**27**(1),
34–37.

The following sources also quote the data, but have reversed the two seed types from the original source:

P. J. Smith and D. F. Heitjan (1993).
Testing and adjusting for departures from nominal dispersion
in generalized linear models.
*Applied Statistics*,
**42**,
31–41
(Table 1).

D. J. Hand, F. Daly, A. D. Lunn, K. J. McConway, and E. Ostrowski (1994).
*A Handbook of Small Data Sets*, London: Chapman and Hall.
Dataset 420.

data(germBin) summary(germBin)

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