Tool to deduplicate a list. Doubles or duplicates are a repeated redundant information present twice (or more) in a list, usually useless.
Duplicates in a List - dCode
Tag(s) : Data Processing
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Duplicates in a List
Duplicates Detector
Answers to Questions (FAQ)
What is a duplicate? (Definition)
A duplicate is a redundant element (double or triple or more) in a set of elements (a list).
How to remove doubles in a list?
Indicate / copy-paste items in the List field. dCode detects if the list is a list of terms (one per line) or a list of words (with separator) and finds redundant items repeated more than once in order to un-duplicate.
Example: A,B,C,D,A,B,C,A,B,A can be deduplicated as A,B,C,D (repeated terms were removed)
Be carefull to take into account all writing variants of a same element: ignore accents and diacritics allow to treat words like item and ìtém as a same word twice. Also, ignoring uppercase and lowercase allow to detect/find item and ITEM as a duplication of the same word and delete them.
How to count doubles in a list?
By listing items, dCode detector counts the number of appearance of each, the list can be sorted to detect the most duplicated ones.
dCode counts duplicates/redundancies, so 2 identical items is counted 1 duplicate. N identical elements is counted N-1.
Why counting doubles?
There are many applications where the presence of duplicates can be a problem:
— detect and delete duplicate files to free up disk space
— deduplicate data from a database, retaining only one occurrence of each unique/distinct record.
— sending mailings by checking if a list of email addresses contains duplicates in order to filter the list and delete identical emails.
Source code
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Cite as source (bibliography):
Duplicates in a List on dCode.fr [online website], retrieved on 2024-12-21,
