04 / 20 How to read a correspondence table
How to read a correspondence table
How a correspondence table is structured, how to read a one to many mapping, and why a mapping is not a guarantee.
The four levels
- Level 1 Section One letter
- Level 2 Division Two digits
- Level 3 Group Three digits
- Level 4 Class Four digits
Guides in this cluster
- How do correspondence tables cover other classifications?
Tables between NACE and ISIC, CPA, CN and MIGs, and how a cross classification table differs from a version table.
- How do correspondence tables differ from explanatory notes?
The table as a record of relationships, the notes as definitions of scope, and why both are needed for a move.
- How do correspondence tables help compare statistics over time?
Backcasting, double reporting, and the limits of converting a series from the table alone.
- How do you check a move in both directions?
Reading the Rev. 2 to Rev. 2.1 table forward and reverse, why types reverse, and how to state the direction.
- How do you read a many to many row?
How a many to many row shows identical joint scope without individual correspondence, and how to treat the group as a whole.
- How do you read a many to one merge row?
How a merge row combines old scopes into one new class, using the verified agriculture and wholesale merges.
- How do you read a one to many split row?
How a split row divides an old scope among new classes, using the verified wood class split as the worked example.
- How do you read a one to one row?
How a one to one row shows identical scope, what to verify in the notes, and why the row still needs a version label.
- What are the four correspondence types?
The one to one, many to one, one to many and many to many types, their counts, and what each type permits.
- What does a correspondence table not decide?
The limits of a correspondence table for codes, entries, eligibility, and series conversion, and where each question is decided.
- What is a correspondence table?
The two types of correspondence table, what each type compares, and where the NACE Rev. 2 to Rev. 2.1 table sits.
- Where are the official correspondence tables published?
The Eurostat correspondence tables page, ShowVoc, the manual passage, and the national institute copies to check.
All guides or home.