is an option for DateListPlot and TemporalData that specifies how dates given as input should be interpreted.
DateFunction
is an option for DateListPlot and TemporalData that specifies how dates given as input should be interpreted.
Details
- A setting such as DateFunction->(DateList [#,{"e1",…}]&) specifies that a sequence of elements "ei" should be extracted from each date. »
- The default setting DateFunction->Automatic automatically converts standard non-ambiguous dates.
Examples
open all close allBasic Examples (2)
Prepend a year to create dates from {month,day} lists:
Interpret dates indexed by a week number:
Scope (2)
Define functions for interpreting ambiguous date strings for DateListPlot :
Define functions for interpreting ambiguous date strings for creating TemporalData :
Related Guides
History
Text
Wolfram Research (2007), DateFunction, Wolfram Language function, https://reference.wolfram.com/language/ref/DateFunction.html.
CMS
Wolfram Language. 2007. "DateFunction." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DateFunction.html.
APA
Wolfram Language. (2007). DateFunction. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DateFunction.html
BibTeX
@misc{reference.wolfram_2025_datefunction, author="Wolfram Research", title="{DateFunction}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/DateFunction.html}", note=[Accessed: 19-November-2025]}
BibLaTeX
@online{reference.wolfram_2025_datefunction, organization={Wolfram Research}, title={DateFunction}, year={2007}, url={https://reference.wolfram.com/language/ref/DateFunction.html}, note=[Accessed: 19-November-2025]}