Appendix of Empirical Study of Co-Renamed Identifiers

This data contains four CSVs: Rename.csv, Rename_Ignore_Inflection.csv, Relation.csv, Relation_Ignore_Inflection.csv.

Rename.csv and Rename_Ignore_Inflection.csv contain renamings used in our study.

The difference between these CSVs is whether we ignored inflections. 

Each row represents a renaming.

Columns descriptions are below.

• repository: repository name
• commit: commit hash
• filepath: location of the renamed identifier
• oldname: identifier name before the renaming
• newname: identifier name after the renaming
• type: identifier type (Class, Method, Attribute, Parameter, Variable)
• operational_chunk: operational chunks of the renaming
• meaningful_rename_set_id: meaningful rename set IDs (independent for each repository)

Relation.csv and Relation_Ignore_Inflection.csv contain relationships detected in our study.

The difference between these CSVs is whether we ignored inflections. 

Each row represents a relationship between renamed identifier 1 and renamed identifier 2.

Columns descriptions are below.

• repository: repository name
• meaningful_rename_set_id: meaningful rename set IDs (independent for each repository)
• commit: commit hash
• relation: type of relationship
• file{1,2}: location of the identifier
• oldname{1,2}: identifier name before the renaming
• newname{1,2}: identifier name after the renaming
• type{1,2}: identifier type (Class, Method, Attribute, Parameter, Variable)