DeleteDuplicatesBy

DeleteDuplicatesBy[{e1,e2,},f]

deletes those ei that yield duplicates in the list {f[e1],f[e2],}.

DeleteDuplicatesBy[f]

represents an operator form of DeleteDuplicatesBy that can be applied to an expression.

Details

Examples

Basic Examples  (2)

Delete pairs with a duplicate last element:

Delete values from an association that have the same magnitude:

Use the operator form of DeleteDuplicatesBy:

Wolfram Research (2014), DeleteDuplicatesBy, Wolfram Language function, https://reference.wolfram.com/language/ref/DeleteDuplicatesBy.html.

Text

Wolfram Research (2014), DeleteDuplicatesBy, Wolfram Language function, https://reference.wolfram.com/language/ref/DeleteDuplicatesBy.html.

CMS

Wolfram Language. 2014. "DeleteDuplicatesBy." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DeleteDuplicatesBy.html.

APA

Wolfram Language. (2014). DeleteDuplicatesBy. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DeleteDuplicatesBy.html

BibTeX

@misc{reference.wolfram_2022_deleteduplicatesby, author="Wolfram Research", title="{DeleteDuplicatesBy}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/DeleteDuplicatesBy.html}", note=[Accessed: 05-October-2022 ]}

BibLaTeX

@online{reference.wolfram_2022_deleteduplicatesby, organization={Wolfram Research}, title={DeleteDuplicatesBy}, year={2014}, url={https://reference.wolfram.com/language/ref/DeleteDuplicatesBy.html}, note=[Accessed: 05-October-2022 ]}