LiangAbu {archeofrag}

Dataset: Archeological relationships between pottery fragments in Liang Abu

Description

Liang Abu is an archaeological site in East Kalimantan, Indonesia. This dataset describes the relationships between pottery fragments found during excavations (2009-2012). Two types of relationships are defined.

• A connection relationship refers to a physical connection between two fragments that were part of the same object.

• A similarity relationship between fragments is defined if there is an acceptable likelihood that those fragments were part of the same object.

The dataset is composed of three tables, df.cr, df.sr, fragments.info.

• df.cr: "connection" relationships between fragments.

• df.sr: "similarity" relationships between fragments.

• fragments.info: contextual information concerning each fragment.

Usage

data(LiangAbu)

Format

• df.cr is a 56x2 matrix. Each line describes a connection relationship between two fragments. There respective unique identifiers are given in column "frg_id1" and in column "frg_id2".

• df.sr is a 147x2 matrix. Column "frg_id" gives a fragment unique identifier, column "su_id" gives a unique identifier for the group of similar fragments it belongs to (similarity unit).

• fragments.info is 177x8 data frame:

  • frg_id: unique fragment identifier

  • layer: stratigraphic layer

  • zmin: minimal depth in centimetres where the fragment was found

  • zmax: maximal depth in centimetres where the fragment was found

  • square: square where the fragment was found

  • sherd.type: type of pottery sherd

  • thickness: thickness of the fragments in millimetres

  • length: length of the fragments in millimetres

References

• Plutniak, Sebastien, "The Strength of Parthood Ties. Modelling Spatial Units and Fragmented Objects with the TSAR Method - Topological Study of Archaeological Refitting", Journal of Archaeological Science, vol. 136, 105501, doi: 10.1016/j.jas.2021.105501.

• Plutniak, Sebastien, "Refitting pottery fragments from the Liang Abu rockshelter, Borneo", Zenodo, doi: 10.5281/zenodo.4719578.

• Plutniak, Sebastien, Astolfo Araujo, Simon Puaud, Jean-Georges Ferrie, Adhi Agus Oktaviana, Bambang Sugiyanto, Jean-Michel Chazine et Francois-Xavier Ricaut. 2015. "Borneo as a half empty pot: Pottery assemblage from Liang Abu, East Kalimantan, Quaternary International, doi: 10.1016/j.quaint.2015.11.080.

Examples

data(LiangAbu)
head(fragments.info)