Refitting data from La Grande Rivoire prehistoric site

Refitting data from the La Grande Rivoire archaeological site. This record includes:

grande-rivoire-fragments.csv. data about lithic objects. Each line documents an object with the folowing variables:

id: unique identifier

layer: archaeological layer

layer.su: combination of archaeological layer and sedimentary unit

grande-rivoire-connection.csv. Each line documents a refitting relationship between two objects

id1: unique identifier of the first object

id2: unique identifier of the second object