Tool to find uncommon elements between two lists to list different elements present only in the first or second list. Ideal for comparing, detecting differences and extracting unique data.
Non Common Items - dCode
Tag(s) : Data Processing
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Non Common Items
Non Common Items Comparator
Answers to Questions (FAQ)
What are Non-Common Elements? (Definition)
Given two sets of elements, non-common elements are those present only in one of the two sets, but not in both.
This is a set operation known as disjoint union or set XOR.
How to calculate missing items in lists?
Given two lists, the dCode tool identifies the differences between them. It highlights items present in the first list but absent from the second (missing or omitted items), as well as those present in the second but absent from the first (added, supplementary, or intruder items). By default, dCode displays all the differences between the two lists.
Example: In the list (1): C,O,D,E and list (2) : A,B,C,D,E, the only one item present in list (1) is: O, and the items presents in list (2) only are: A and B.
To list the common items and not the different ones, dCode offers a tool for common elements.
For statistical considerations of comparison of lists, see page precision and recall.
What is the XOR set operator?
When to use the Uncommon Elements tool?
— Compare an updated database with an older version and detect additions/deletions to avoid duplicates or errors.
— Compare two product lists to identify products exclusive to each supplier/store.
— Identify words in a text that are not included in a given dictionary (language, jargon, specialty).
Source code
dCode retains ownership of the "Non Common Items" source code. Any algorithm for the "Non Common Items" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Non Common Items" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Non Common Items" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
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