Orange: Difference: Difference between revisions

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Sumber: https://orange.biolab.si/widget-catalog/time-series/difference/
Sumber: https://orange.biolab.si/widget-catalog/time-series/difference/


Make the time series stationary by replacing it with 1st or 2nd order discrete difference along its values.
Widget Difference membuat sebuah time series stationary dengan cara menggantinya dengan 1st atau 2nd order discrete difference dari nilai-nilai-nya. Dalam bahasa matematika sederhana, widget Difference mengganti nilai time series input menjadi turunan pertama atau ke dua secara diskrit (digital).


Inputs
==Input==


    Time series: Time series as output by As Timeseries widget.
Time series: Time series as output by As Timeseries widget.


Outputs
==Output==


    Time series: Differences of input time series.
Time series: Differences of input time series.


[[File:Difference-stamped.png|center|200px|thumb]]
[[File:Difference-stamped.png|center|200px|thumb]]




    Order of differencing. Can be 1 or 2.
* Order of differencing. Can be 1 or 2.
    The shift before differencing. Value of 1 equals to discrete differencing. You can use higher values to compute the difference between now and this many steps ahead.
* The shift before differencing. Value of 1 equals to discrete differencing. You can use higher values to compute the difference between now and this many steps ahead.
    Invert the differencing direction.
* Invert the differencing direction.
    Select the series to difference.
* Select the series to difference.


To integrate the differences back into the original series (e.g. the forecasts), use the Moving Transform widget.
Untuk meng-integrasikan agar time series hasil widget Difference kembali ke nilai awal time series (misalnya, forecast), kita dapat menggunakan widget Moving Transform.





Latest revision as of 08:29, 7 April 2020

Sumber: https://orange.biolab.si/widget-catalog/time-series/difference/

Widget Difference membuat sebuah time series stationary dengan cara menggantinya dengan 1st atau 2nd order discrete difference dari nilai-nilai-nya. Dalam bahasa matematika sederhana, widget Difference mengganti nilai time series input menjadi turunan pertama atau ke dua secara diskrit (digital).

Input

Time series: Time series as output by As Timeseries widget.

Output

Time series: Differences of input time series.


  • Order of differencing. Can be 1 or 2.
  • The shift before differencing. Value of 1 equals to discrete differencing. You can use higher values to compute the difference between now and this many steps ahead.
  • Invert the differencing direction.
  • Select the series to difference.

Untuk meng-integrasikan agar time series hasil widget Difference kembali ke nilai awal time series (misalnya, forecast), kita dapat menggunakan widget Moving Transform.


Referensi

Pranala Menarik