R: Record Linkage Data Object

RecLinkData.object {RecordLinkage} | R Documentation

## Record Linkage Data Object

### Description

S3 class representing information about record pairs for Record Linkage, as returned by functions `compare.dedup` and `compare.linkage`.

### Value

A list with at least the following elements:

`data` (for `type = "deduplication"`:

  Object of class `"data.frame"`. Data frame of original records.

`data1`, `data2` (for `type = "linkage"`:

  Objects of class `"data.frame"`. Data frames of original records.

`pairs`:

  Object of class `"data.frame"` Data frame of data pairs. Each row represents the comparison pattern of two records, identified by columns `id1` and `id2`. The other columns contain for each considered attribute a real number in the range [0..1] representing the degree of similarity. These columns are named according to the respective columns in `data`. The last column contains the matching status of the pair, coded as 1 for a match or 0 for a non-match.

`frequencies`:

  Object of class `"numeric"` Numeric vector with average frequency of values for each column included in `pairs` (reciprocal of number of distinct values).

`type`:

  Object of class `"character"` Identifies whether a linkage (`"linkage"`) or a deduplication (`"deduplication"`) project is represented.

`.S3class`:

  Internal slot.

The following elements are optional:

`M`:

  Object of class `"numeric"` Vector of m-probabilities as calculated by `emWeights`.

`U`:

  Object of class `"numeric"` Vector of u-probabilities as calculated by `emWeights`.

`W`:

  Object of class `"numeric"` Vector of log-likelihood weights as calculated by `emWeights`, corresponding to binary comparison patterns as created by `bincombinations`.

`Wdata`:

  Object of class `"numeric"` Vector of log-likelihood weights as calculated by `emWeights`, corresponding to the rows of `pairs`.

### Author(s)

Andreas Borg, Murat Sariyar

### See Also

`"RecLinkData"` for the S4 representation. `compare.dedup`, which creates objects of this class. `"RLBigData"`, an alternative data structure suitable for big data sets.

[Package RecordLinkage version 0.4-11.2 Index]