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EventSeriesQ[expr]

gives True if expr is a valid EventSeries object, and False otherwise.

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EventSeriesQ

EventSeriesQ[expr]

gives True if expr is a valid EventSeries object, and False otherwise.

Details

Examples

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Basic Examples  (2)

Test whether an object is valid event series:

Wolfram Language code: EventSeries[{"sell", "buy", "sell"}, {{DateObject[{2025, 1, 9}, "Day"], DateObject[{2025, 10, 6}, "Day"], DateObject[{2025, 12, 23}, "Day"]}}]
Wolfram Language code: EventSeriesQ[%]

Test that this event series of sunrises is valid:

Wolfram Language code: Sunrise[DateRange[Today, Today + Quantity[7, "Days"]]]
Wolfram Language code: EventSeriesQ[%]

Scope  (1)

Compute the instants of March equinox for 100 consecutive years:

Wolfram Language code: FindAstroEvent["MarchEquinox", DateRange[DateObject@{2001}, {2100}, "Year"]]
Wolfram Language code: EventSeriesQ[%]

Properties & Relations  (2)

Empty EventSeries objects are valid:

Wolfram Language code: EventSeries[{}]
Wolfram Language code: EventSeriesQ[%]

Valid TimeSeries objects are not valid event series:

Wolfram Language code: ts = TimeSeries[{30, 42, 50}, {1}]
Wolfram Language code: TimeSeriesQ[ts]
Wolfram Language code: EventSeriesQ[ts]
Wolfram Research (2026), EventSeriesQ, Wolfram Language function, https://reference.wolfram.com/language/ref/EventSeriesQ.html.

Text

Wolfram Research (2026), EventSeriesQ, Wolfram Language function, https://reference.wolfram.com/language/ref/EventSeriesQ.html.

CMS

Wolfram Language. 2026. "EventSeriesQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/EventSeriesQ.html.

APA

Wolfram Language. (2026). EventSeriesQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/EventSeriesQ.html

BibTeX

@misc{reference.wolfram_2026_eventseriesq, author="Wolfram Research", title="{EventSeriesQ}", year="2026", howpublished="\url{https://reference.wolfram.com/language/ref/EventSeriesQ.html}", note=[Accessed: 12-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_eventseriesq, organization={Wolfram Research}, title={EventSeriesQ}, year={2026}, url={https://reference.wolfram.com/language/ref/EventSeriesQ.html}, note=[Accessed: 12-June-2026]}