LiangAbu {archeofrag} | R Documentation |
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.
data(LiangAbu)
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
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.
data(LiangAbu)
head(fragments.info)