DateDistribution

DateDistribution[dist,dunit,dorig]

represents a distribution dist of dates with date scale unit dunit and date origin dorig.

Details and Options

Examples

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Basic Examples  (2)

Define a continuous date distribution:

Compute the mean of the distribution:

Simulate a random date from this distribution:

Simulate a list of dates and visualize their distribution:

Define a discrete date distribution:

Compute the median of the distribution:

Simulated random date from this distribution has granularity of year:

Simulate a list of dates and visualize their distribution:

Scope  (5)

Define a nonsymmetric distribution of dates starting at midnight of today:

Simulate the instances:

Estimate DateDistribution from the collection of dates:

Since the data histogram is bell shaped, fit a normal distribution to the data:

The arguments to distribution functions of a DateDistribution must be dates:

Compute distribution moments of a DateDistribution:

Moment and FactorialMoment are not defined:

Use a nonparametric distribution to define DateDistribution:

Create the series data of times between the starting date and a serious earthquake:

Create a nonparametric model of the data:

Use the model to create distribution of dates:

Simulate and visualize the sample:

Options  (3)

CalendarType  (1)

Specifying CalendarType will override the date origin input:

TimeSystem  (1)

Specifying TimeSystem will override the date origin input:

TimeZone  (1)

Specifying TimeZone will override the date origin input:

Applications  (1)

List of dates when class of students submitted an assignment:

Visualize the dates distribution:

Fit a GammaDistribution to the dates:

Plot the PDF with steps of one minute and compare with the histogram:

Properties & Relations  (3)

Extract properties of a DateDistribution:

List of properties:

Granularity of a discrete date distribution is given by the date scale unit:

Granularity of a continuous date distribution is always "Instant":

Possible Issues  (2)

The input distribution must be a valid distribution:

Check if a distribution is valid:

Create a valid distribution:

The unit must be a valid time unit:

Check if a unit is a time unit:

For a time unit:

Or use KnownUnitQ with second argument set as "Time":

Wolfram Research (2024), DateDistribution, Wolfram Language function, https://reference.wolfram.com/language/ref/DateDistribution.html.

Text

Wolfram Research (2024), DateDistribution, Wolfram Language function, https://reference.wolfram.com/language/ref/DateDistribution.html.

CMS

Wolfram Language. 2024. "DateDistribution." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DateDistribution.html.

APA

Wolfram Language. (2024). DateDistribution. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DateDistribution.html

BibTeX

@misc{reference.wolfram_2024_datedistribution, author="Wolfram Research", title="{DateDistribution}", year="2024", howpublished="\url{https://reference.wolfram.com/language/ref/DateDistribution.html}", note=[Accessed: 15-October-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_datedistribution, organization={Wolfram Research}, title={DateDistribution}, year={2024}, url={https://reference.wolfram.com/language/ref/DateDistribution.html}, note=[Accessed: 15-October-2024 ]}