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TimeSeriesAnalysis

  

GetData

  

obtain raw data from time series

  

GetDates

  

obtain dates from time series

  

GetDateFormat

  

obtain default date format from time series

  

GetHeaders

  

obtain headers from time series

  

GetPeriod

  

obtain period from time series

 

Calling Sequence

Parameters

GetData

GetDates

GetDateFormat

GetHeaders

GetPeriod

Examples

Compatibility

Calling Sequence

GetData(TS, readonly_opt)

GetDates(TS, format_opt)

GetDateFormat(TS)

GetHeaders(TS)

GetPeriod(TS)

Parameters

TS

-

TimeSeries object

readonly_opt

-

(optional) equation of the form readonly = true or false

format_opt

-

(optional) equation of the form format = formatvalue

GetData

• 

This command returns a Matrix where each data set in TS occupies one column.

• 

If the keyword readonly is supplied, or the option readonly = true, then the Matrix returned is a read-only alias of the Matrix actually in the TimeSeries object. If the option readonly = false is supplied (the default), then the Matrix returned is a copy of the Matrix TimeSeries object.

GetDates

• 

This command returns a column Vector of the dates of the TimeSeries object.

• 

By default, the date format stored as the default date format is returned. This date format can be obtained with the GetDateFormat command. A different format can be selected with the format = str option, where str is a string. This string is passed to StringTools[FormatTime]. If str is the string "unformatted", then the dates are returned a Vector of numbers.

GetDateFormat

• 

This command returns the default formatting string.

GetHeaders

• 

This command returns the list of headers of the data sets.

GetPeriod

• 

This command returns the period optionally used for seasonal models, as the number of observations per season.

Examples

withTimeSeriesAnalysis:

tsTimeSeries4,5,6,2,1,2,'headers'=Monthly sales,Monthly profits,'startdate'=2013-01-31,'frequency'=monthly

ts:=Time seriesMonthly sales, Monthly profits3 rows of data:2013-01-31 - 2013-03-31

(1)

A copy of the data, and a read-only alias of the data.

GetDatats

4.2.5.1.6.2.

(2)

GetDatats,'readonly'=true

4.2.5.1.6.2.

(3)

The dates for this time series in various formats.

GetDatests

2013-01-312013-02-282013-03-31

(4)

GetDatests,format=%D

01/31/1302/28/1303/31/13

(5)

GetDatests,format=unformatted

135959040013620096001364684400

(6)

The headers.

GetHeadersts

Monthly sales,Monthly profits

(7)

The period. There are 12 months in a year.

GetPeriodts

12

(8)

Compatibility

• 

The TimeSeriesAnalysis[GetData], TimeSeriesAnalysis[GetDates], TimeSeriesAnalysis[GetDateFormat], TimeSeriesAnalysis[GetHeaders] and TimeSeriesAnalysis[GetPeriod] commands were introduced in Maple 18.

• 

For more information on Maple 18 changes, see Updates in Maple 18.

See Also

Statistics[AutoCorrelation]

Statistics[CrossCorrelation]

TimeSeriesAnalysis

 


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