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Least Squares Method for Autocorrection (Feerd-Hastly method)

An automatic correction method in which:

1. the least possible number of data items are changed

2. the changed record is the closest one (measured by the weighted sum of squares of deviations of the changed data) to the original (incorrect) record.

Source: UNECE Data Editing Group

Linear Edits

Edits arising from linear constraints.

Example: If v1, v2, v3 are variables and a, b, and c are real constants, linear inequality edits are given by:
1.  a <= v1  &  v2 <= b (This is two edits. Each can be converted to linear inequality.)
2.  a v1 + b v2 <= c
3.  v1 + v2 = v3

Source: UNECE Data Editing Group

See also:   Nonlinear Edits

List of Code Words

See:  Code List

Logical Condition Check

Verifying whether the given logical condition is met. It is usually employed to check qualitative data.

Source: UNECE Data Editing Group

Logical Level of the Checking Rule

The logical level of the data structure to which the given checking rule refers (individual data item, record, logical group of records, and the like).

Source: UNECE Data Editing Group