About time periods - Revision history

JeanetteEggers at 07:54, 4 August 2021

2021-08-04T07:54:22Z

← Older revision		Revision as of 08:54, 4 August 2021
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	==Period year and treatment year==		==Period year and treatment year==
	In Heureka, each period has an associated year (found in TreatmentData.Year), which refers no the number of years that has passed since the start.		In Heureka, each period has an associated year (found in TreatmentData.Year), which refers to the number of years that has passed since the start.

	Year 0: Now (start of the analysis) <br>		Year 0: Now (start of the analysis) <br>

Peder: /* Period year and treatment year */

2021-07-26T16:26:37Z

Period year and treatment year

← Older revision		Revision as of 17:26, 26 July 2021
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	Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on. Figure 1 and 2 and the associated tables illustrate how periods are defined with and without period midpoints.		Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on. Figure 1 and 2 and the associated tables illustrate how periods are defined with and without period midpoints.
			<br>
	[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|600px\|Fig 1. Period definitions when period midpoints are not used, assuming start time 2020-01-01]]		[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|600px\|Fig 1. Period definitions when period midpoints are not used, assuming start time 2020-01-01]]
			<br>
	{\| {{table}}		{\| {{table}}
	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''
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	\|		\|
	\|}		\|}
			<br>
	[[File:Periods when using periodmidpoint.png\|none\|thumb\|600px\|Fig 2. Period definitions when period midpoints are used, assuming start time 2020-01-01]]		[[File:Periods when using periodmidpoint.png\|none\|thumb\|600px\|Fig 2. Period definitions when period midpoints are used, assuming start time 2020-01-01]]
	~~Period meaning when period midpoints are used.~~		<br>
	{\| {{table}}		{\| {{table}}
	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''

Peder: /* Period year and treatment year */

2021-07-26T16:25:32Z

Period year and treatment year

Peder: /* Period year and treatment year */

2021-07-26T16:19:32Z

Period year and treatment year

← Older revision		Revision as of 17:19, 26 July 2021
Line 23:		Line 23:
	Year 5: Five year after the start = Beginning of the sixth year.		Year 5: Five year after the start = Beginning of the sixth year.

	Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on. Figure 1 and 2 ~~illustrates~~ how periods are defined with and without period midpoints.		Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on. Figure 1 and 2 and the associated tables illustrate how periods are defined with and without period midpoints.

	~~When period midpoints are not used, the meaning of period are~~
	[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|600px\|Fig 1. Period definitions when period midpoints are not used, assuming start time 2020-01-01]]		[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|600px\|Fig 1. Period definitions when period midpoints are not used, assuming start time 2020-01-01]]
	{\| {{table}}		{\| {{table}}

Peder at 16:17, 26 July 2021

2021-07-26T16:17:42Z

← Older revision		Revision as of 17:17, 26 July 2021
Line 26:		Line 26:

	When period midpoints are not used, the meaning of period are		When period midpoints are not used, the meaning of period are
	[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|~~500px~~\|Fig 1. Period definitions when period ~~midpoint~~ are not used, assuming start time 2020-01-01]]		[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|600px\|Fig 1. Period definitions when period midpoints are not used, assuming start time 2020-01-01]]
	{\| {{table}}		{\| {{table}}
	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''
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	\|}		\|}

	[[File:Periods when using periodmidpoint.png\|none\|thumb\|~~500px~~\|Fig 2. Period definitions when period midpoints are used, assuming start time 2020-01-01]]		[[File:Periods when using periodmidpoint.png\|none\|thumb\|600px\|Fig 2. Period definitions when period midpoints are used, assuming start time 2020-01-01]]
	Period meaning when period midpoints are used.		Period meaning when period midpoints are used.
	{\| {{table}}		{\| {{table}}

Peder at 16:16, 26 July 2021

2021-07-26T16:16:14Z

← Older revision		Revision as of 17:16, 26 July 2021
Line 23:		Line 23:
	Year 5: Five year after the start = Beginning of the sixth year.		Year 5: Five year after the start = Beginning of the sixth year.

	Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on.		Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on. Figure 1 and 2 illustrates how periods are defined with and without period midpoints.

	~~===Examples ===~~		When period midpoints are not used, the meaning of period are
			[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|500px\|Fig 1. Period definitions when period midpoint are not used, assuming start time 2020-01-01]]
	[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|500px]]
	Period ~~meaning~~ when period ~~midpoints ARE NOT USED.~~
	{\| {{table}}		{\| {{table}}
	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''
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	\|}		\|}

	[[File:Periods when using periodmidpoint.png\|none\|thumb\|500px]]		[[File:Periods when using periodmidpoint.png\|none\|thumb\|500px\|Fig 2. Period definitions when period midpoints are used, assuming start time 2020-01-01]]
	Period meaning when period midpoints are used.		Period meaning when period midpoints are used.
	{\| {{table}}		{\| {{table}}

Peder: /* Examples */

2021-07-26T15:53:08Z

Examples

← Older revision		Revision as of 16:53, 26 July 2021
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	===Examples ===		===Examples ===

			[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|500px]]
	Period meaning when period midpoints ARE NOT USED.		Period meaning when period midpoints ARE NOT USED.
	{\| {{table}}		{\| {{table}}
	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''
	\| align="left" style="background:#f0f0f0;"\|'''Description '''		\| align="left" style="background:#f0f0f0;"\|'''Description '''
			\| align="left" style="background:#f0f0f0;"\|'''Value of period year '''
	\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''		\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''
	\| align="left" style="background:#f0f0f0;"\|'''Date range		\| align="left" style="background:#f0f0f0;"\|'''Date range'''
	\| 0\|\|Index för the first period \|\|0-4\|\|2020-01-01 - 2024-12-31		\|-
			\| 0\|\|Index för the first period \|\|0\|\|0-4\|\|2020-01-01 - 2024-12-31
			\|-
			\| 1\|\|Index for the second period\|\|5\|\|5-9\|\|2025-01-01 - 2029-12-31
			\|-
			\| 2\|\|etc\|\|10\|\|10-14\|\|2030-01-01 -- 2034-12-31
			\|-
			\|
			\|}

			[[File:Periods when using periodmidpoint.png\|none\|thumb\|500px]]
			Period meaning when period midpoints are used.
			{\| {{table}}
			\| align="left" style="background:#f0f0f0;"\|'''Period index'''
			\| align="left" style="background:#f0f0f0;"\|'''Description '''
			\| align="left" style="background:#f0f0f0;"\|'''Value of period year '''
			\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''
			\| align="left" style="background:#f0f0f0;"\|'''Date range'''
			\|-
			\| 0\|\|Start time index \|\|0\|\|0\|\|2020-01-01
	\|-		\|-
	\| 1\|\|Index for the ~~second~~ period\|\|5-9\|\|~~2025~~-01-01 - ~~2029~~-12-31		\| 1\|\|Index for the first harvest period\|\|2.5\|\|0-4-9\|\|2020-01-01 - 2024-12-31
	\|-		\|-
	\| 2\|\|etc\|\|10-14\|\|		\| 2\|\|etc\|\|10\|\|10-14\|\|
	\|-		\|-
	\|		\|
	\|}		\|}

	~~[[File:Periods~~ when ~~NOT periodmidpoint~~.~~png\|left\|thumb\|500px]]~~		Note that period 0 includes the same date interval when we do not apply period midpoints as period 1 does when we apply midpoints. However, the calculated values (volumes etc.) will differ. Assuming harvesting takes places in the beginnning of a period ignores that the trees have grown in average 2.5 years before the forst harvest is carried out.
	~~<br>~~

	==”Before” and “After” values==		==”Before” and “After” values==

Peder: /* Examples */

2021-07-26T15:36:12Z

Examples

← Older revision		Revision as of 16:36, 26 July 2021
Line 42:		Line 42:

	[[File:Periods when NOT periodmidpoint.png\|left\|thumb\|500px]]		[[File:Periods when NOT periodmidpoint.png\|left\|thumb\|500px]]
			<br>

	==”Before” and “After” values==		==”Before” and “After” values==

Peder: /* Period year and treatment year */

2021-07-26T15:34:00Z

Period year and treatment year

← Older revision		Revision as of 16:34, 26 July 2021
Line 40:		Line 40:
	\|		\|
	\|}		\|}

			[[File:Periods when NOT periodmidpoint.png\|left\|thumb\|500px]]

	==”Before” and “After” values==		==”Before” and “After” values==

Peder: /* Period year and treatment year */

2021-07-26T15:24:34Z

Period year and treatment year

← Older revision		Revision as of 16:24, 26 July 2021
Line 20:		Line 20:
	In Heureka, each period has an associated year (found in TreatmentData.Year), which refers no the number of years that has passed since the start.		In Heureka, each period has an associated year (found in TreatmentData.Year), which refers no the number of years that has passed since the start.

	Year 0: Now (start of the analysis)		Year 0: Now (start of the analysis) <br>
	Year 5: Five year after the start = Beginning of the sixth year.		Year 5: Five year after the start = Beginning of the sixth year.

	Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on.		Note that when using period midpoints (default in PlanWise), the first period index (0) refers starting states for the analysis. In this case, the first actual planning period where optional treatments can be simulated is period 1. Period 1 has period year 2.5, i.e. the midpoint of the first five years, meaning that the period covers year 1 to 5. Period 2 covers years 6-10, and so on.

			===Examples ===
			Period meaning when period midpoints ARE NOT USED.
			{\| {{table}}
			\| align="left" style="background:#f0f0f0;"\|'''Period index'''
			\| align="left" style="background:#f0f0f0;"\|'''Description '''
			\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''
			\| align="left" style="background:#f0f0f0;"\|'''Date range
			\| 0\|\|Index för the first period \|\|0-4\|\|2020-01-01 - 2024-12-31
			\|-
			\| 1\|\|Index for the second period\|\|5-9\|\|2025-01-01 - 2029-12-31
			\|-
			\| 2\|\|etc\|\|10-14\|\|
			\|-
			\|
			\|}

	==”Before” and “After” values==		==”Before” and “After” values==

← Older revision		Revision as of 16:53, 26 July 2021
Line 26:		Line 26:

	===Examples ===		===Examples ===

			[[File:Periods when NOT periodmidpoint.png\|none\|thumb\|500px]]
	Period meaning when period midpoints ARE NOT USED.		Period meaning when period midpoints ARE NOT USED.
	{\| {{table}}		{\| {{table}}
	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''
	\| align="left" style="background:#f0f0f0;"\|'''Description '''		\| align="left" style="background:#f0f0f0;"\|'''Description '''
			\| align="left" style="background:#f0f0f0;"\|'''Value of period year '''
	\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''		\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''
	\| align="left" style="background:#f0f0f0;"\|'''Date range		\| align="left" style="background:#f0f0f0;"\|'''Date range'''
	\| 0\|\|Index för the first period \|\|0-4\|\|2020-01-01 - 2024-12-31		\|-
			\| 0\|\|Index för the first period \|\|0\|\|0-4\|\|2020-01-01 - 2024-12-31
			\|-
			\| 1\|\|Index for the second period\|\|5\|\|5-9\|\|2025-01-01 - 2029-12-31
			\|-
			\| 2\|\|etc\|\|10\|\|10-14\|\|2030-01-01 -- 2034-12-31
			\|-
			\|
			\|}

			[[File:Periods when using periodmidpoint.png\|none\|thumb\|500px]]
			Period meaning when period midpoints are used.
			{\| {{table}}
			\| align="left" style="background:#f0f0f0;"\|'''Period index'''
			\| align="left" style="background:#f0f0f0;"\|'''Description '''
			\| align="left" style="background:#f0f0f0;"\|'''Value of period year '''
			\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''
			\| align="left" style="background:#f0f0f0;"\|'''Date range'''
			\|-
			\| 0\|\|Start time index \|\|0\|\|0\|\|2020-01-01
	\|-		\|-
	\| 1\|\|Index for the ~~second~~ period\|\|5-9\|\|~~2025~~-01-01 - ~~2029~~-12-31		\| 1\|\|Index for the first harvest period\|\|2.5\|\|0-4-9\|\|2020-01-01 - 2024-12-31
	\|-		\|-
	\| 2\|\|etc\|\|10-14\|\|		\| 2\|\|etc\|\|10\|\|10-14\|\|
	\|-		\|-
	\|		\|
	\|}		\|}

	~~[[File:Periods~~ when ~~NOT periodmidpoint~~.~~png\|left\|thumb\|500px]]~~		Note that period 0 includes the same date interval when we do not apply period midpoints as period 1 does when we apply midpoints. However, the calculated values (volumes etc.) will differ. Assuming harvesting takes places in the beginnning of a period ignores that the trees have grown in average 2.5 years before the forst harvest is carried out.
	~~<br>~~

	==”Before” and “After” values==		==”Before” and “After” values==

← Older revision		Revision as of 17:25, 26 July 2021
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	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''
	\| align="left" style="background:#f0f0f0;"\|'''Description '''		\| align="left" style="background:#f0f0f0;"\|'''Description '''
	\| align="left" style="background:#f0f0f0;"\|'''~~Value of period~~ year '''		\| align="left" style="background:#f0f0f0;"\|'''Period year '''
	\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''		\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''
	\| align="left" style="background:#f0f0f0;"\|'''Date range'''		\| align="left" style="background:#f0f0f0;"\|'''Date range'''
	\|-		\|-
	\| 0\|\|~~Index för the first~~ period \|\|0\|\|0-4\|\|2020-01-01 - 2024-12-31		\| 0\|\|First period \|\|0\|\|0-4\|\|2020-01-01 - 2024-12-31
	\|-		\|-
	\| 1\|\|~~Index for the second~~ period\|\|5\|\|5-9\|\|2025-01-01 - 2029-12-31		\| 1\|\|Second period\|\|5\|\|5-9\|\|2025-01-01 - 2029-12-31
	\|-		\|-
	\| 2\|\|etc\|\|10\|\|10-14\|\|2030-01-01 -- 2034-12-31		\| 2\|\|etc\|\|10\|\|10-14\|\|2030-01-01 -- 2034-12-31
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	\| align="left" style="background:#f0f0f0;"\|'''Period index'''		\| align="left" style="background:#f0f0f0;"\|'''Period index'''
	\| align="left" style="background:#f0f0f0;"\|'''Description '''		\| align="left" style="background:#f0f0f0;"\|'''Description '''
	\| align="left" style="background:#f0f0f0;"\|'''~~Value of period~~ year '''		\| align="left" style="background:#f0f0f0;"\|'''Period year '''
	\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''		\| align="left" style="background:#f0f0f0;"\|'''Possible treatment years'''
	\| align="left" style="background:#f0f0f0;"\|'''Date range'''		\| align="left" style="background:#f0f0f0;"\|'''Date range'''
	\|-		\|-
	\| 0\|\|Start time ~~index~~ \|\|0\|\|0\|\|2020-01-01		\| 0\|\|Start time \|\|0\|\|0\|\|2020-01-01
	\|-		\|-
	\| 1\|\|~~Index for the first harvest~~ period\|\|2.5\|\|0-4-9\|\|2020-01-01 - 2024-12-31		\| 1\|\|First actual period\|\|2.5\|\|0-4\|\|2020-01-01 - 2024-12-31
	\|-		\|-
	\| 2\|\|~~etc~~\|\|10\|\|10-14\|\|		\| 2\|\|Second actual period\|\|7.5\|\|5-9\|\|2025-01-01 - 2029-12-31
	\|-		\|-
	\|		\|