Support : Dialog Search Aids : Successful Searching : IDENTIFY DUPLICATES

IDENTIFY DUPLICATES

The IDENTIFY DUPLICATES command can be used in single or multiple files to create a sorted set of records in which duplicates are grouped together. The ID command allows you to easily identify duplicate citations, while still retaining all of the records retrieved by your search. Unlike REMOVE DUPLICATES (RD), which automatically eliminates duplicate records from a set, the ID command does not remove records from your search results.

ID entered without a set number defaults to the last set created.

The ID command creates a set of records that have been approximately sorted by title. There are occasional variations to strict alphabetical order because duplicate detection takes into consideration alternate spellings, minor variations in titles, and leading articles, such as "the" and "a."

By displaying the ID set, you can decide which records to TYPE or PRINT. The SET FILES command can be used to change the order in which records are sorted in an ID set. You can also use the ID command on a set that has had the duplicates removed; this will sort the set alphabetically by title.

If you typically post-process your search results (e.g., format them into customized bibliographies with word-processing software), you can use the ID command to gather duplicate records and then combine them later into a single record that contains the best feature from each record, such as various editions of a book.

You can also use the ID command with the FROM option to group duplicates FROM particular files (e.g., ID S3 FROM 6,8).

Note: If you apply the ID command to a search that includes one or more files that do not offer duplicate detection, a system message will notify you of that fact. Dialog will then process the remaining files that do offer duplicate detection. Records from unsupported files will be retained in the ID set, but will be sorted to the bottom of the set. A list of files not offering duplicate detection can be obtained online by entering HELP DUP.

• To IDENTIFY DUPLICATES while using OneSearch^®:

?b 72,154
24mar08 15:27:05 User356433 Session D188.1

  File  72:EMBASE 1993-2008/Mar 20 
         (c) 2008 Elsevier B.V.
  File 154:MEDLINE(R) 1990-2008/Mar 21
         (c) format only 2008 Dialog
 
      Set  Items  Description
      ---  -----  -----------
?select aspirin and diabet?
           58752  ASPIRIN
          397444  DIABET?
      S1    5324  ASPIRIN AND DIABET?
?s s1/2008
            5324  S1
          249592  PY=2008
      S2     140  S1/2008
?id s2
...completed examining records
      S3     140  ID S2 (sorted in duplicate order)
?type s3/6/1-5

3/6/1 (Item 1 from file: 72) 
DIALOG(R)File 72: EMBASE
(c) 2008 Elsevier B.V. All rights reserved.

0082214925     EMBASE No: 2008026297 
  Acute and chronic ischaemia of the limb 

 Publication Date: January 1, 2008 

3/6/2 (Item 2 from file: 72) 
DIALOG(R)File 72: EMBASE
(c) 2008 Elsevier B.V. All rights reserved.

0082264880     EMBASE No: 2008089574 
  Acute coronary syndromes: Management and secondary 
prevention 

 Publication Date: January 1, 2008 

3/6/3 (Item 3 from file: 72) 
DIALOG(R)File 72: EMBASE
(c) 2008 Elsevier B.V. All rights reserved.

0082126896     EMBASE No: 2007576901 
  Adherence to clinical guidelines in the prevention of 
coronary heart disease in type II diabetes mell! itus

 Publication Date: January 1, 2008 

3/6/4 (Item 4 from file: 154) 
DIALOG(R)File 154: MEDLINE(R)
(c) format only 2008 Dialog. All rights reserved.

26110592   PMID: 17721698 
Adherence to clinical guidelines in the prevention of 
coronary heart disease in type II diabetes mellitus. 

Jan 2008 

3/6/5 (Item 5 from file: 72) 
DIALOG(R)File 72: EMBASE
(c) 2008 Elsevier B.V. All rights reserved.

0082268685     EMBASE No: 2008073009 
  Adult-onset still's disease: Pathogenesis, clinical 
manifestations and therapeutic advances 

 Publication Date: March 3, 2008

Usage Notes

DialogLink 5: The SET FILES command is not supported in OneSearch and duplicate detection.

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