Alsacian castles

Description

The data were collected by J.M. Rudrauf on Alsacian castles whose building period is unknown. On each castle, he measured 4 structural parameters on a sample of building stones.

Usage

data(castles.nondated)

Format

castles.nondated is a list of two data frames:

• castles.nondated$stones: this first data frame has 2542 cases (rows) and 5 variables (columns) that are named height, width, eidgen, boss (numeric) and castle (factor).

• castles.nondated$period: this second data frame has 135 cases and 2 variables named castle and period; the column castle corresponds to the levels of the factor castle of the first data frame; the column period is a factor indicating NA as the building period is unknown.

Notice that the data frames corresponding to the castles whose building period is known are those in castles.dated.

Source

Rudrauf, J.M., Boumaza, R. (2001). Contribution <c3><a0> l'<c3><a9>tude de l'architecture m<c3><a9>di<c3><a9>vale: les caract<c3><a9>ristiques des pierres <c3><a0> bossage des ch<c3><a2>teaux forts alsaciens. Centre de Recherches Arch<c3><a9>ologiques M<c3><a9>di<c3><a9>vales de Saverne, 5, 5-38.

Examples

data(castles.nondated)
summary(castles.nondated$stones)
summary(castles.nondated$periods)

Results