SimplePop - Revision history

Rsalter at 21:19, 29 January 2018

2018-01-29T21:19:53Z

← Older revision		Revision as of 21:19, 29 January 2018
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	The Design Frame shows a Stock with incoming and outgoing Flows. The equations in the Flows ''births'' and ''deaths'' are evaluated at each time step and add (respectively subtracts) their value to the value of the Stock ''pop'', which keeps a running tally of total population. These Flows use value provided by the sliders ''birth_rate'' and ''death_rate'', respectively, multiplying them by the current value of ''pop''. The graph ''Population'' displays the value of ''pop'' at each time step.		The Design Frame shows a Stock with incoming and outgoing Flows. The equations in the Flows ''births'' and ''deaths'' are evaluated at each time step and add (respectively subtracts) their value to the value of the Stock ''pop'', which keeps a running tally of total population. These Flows use value provided by the sliders ''birth_rate'' and ''death_rate'', respectively, multiplying them by the current value of ''pop''. The graph ''Population'' displays the value of ''pop'' at each time step.

			The Runtime Frame presents a dashboard containing the two sliders and the graph. The simulation is run using the controls in the top toolbar.

Rsalter at 21:18, 29 January 2018

2018-01-29T21:18:35Z

← Older revision		Revision as of 21:18, 29 January 2018
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	This very simple model demonstrate the basic features of stocks and flows.		This very simple model demonstrate the basic features of stocks and flows.

	The Design Frame shows a Stock with incoming and outgoing Flows. The equations in the Flows ''births'' and ''deaths'' are evaluated at each time step and add (respectively subtracts) their value to the value of the Stock ''pop'', which keeps a running tally of total population. These Flows use value provided by the sliders ''birth_rate'' and ''death_rate'', respectively, multiplying them by the current value of ''pop''.		The Design Frame shows a Stock with incoming and outgoing Flows. The equations in the Flows ''births'' and ''deaths'' are evaluated at each time step and add (respectively subtracts) their value to the value of the Stock ''pop'', which keeps a running tally of total population. These Flows use value provided by the sliders ''birth_rate'' and ''death_rate'', respectively, multiplying them by the current value of ''pop''. The graph ''Population'' displays the value of ''pop'' at each time step.

Rsalter at 21:17, 29 January 2018

2018-01-29T21:17:24Z

← Older revision		Revision as of 21:17, 29 January 2018
Line 1:		Line 1:
	[[File:simplepop.png\|thumb\|Simple Population Model: Design Frame]]		[[File:simplepop.png\|thumb\|Simple Population Model: Design Frame]]
	[[File:simplepoprun.png\|thumb\|Simple Population Model: Runtime Frame]]		[[File:simplepoprun.png\|thumb\|Simple Population Model: Runtime Frame]]
	This very simple model demonstrate the basic features of stocks and flows. The ~~equation~~ in the ~~flow is~~ evaluated at each time step and ~~adds its~~ value to the value of the ~~stock~~, which keeps a running tally of total population. ~~There are both growth and loss dynamics, which rely on the values respectively defined~~ by the sliders ''birth_rate'' and ''death_rate''~~. times~~ the ~~total population at a given time step~~.		This very simple model demonstrate the basic features of stocks and flows.

			The Design Frame shows a Stock with incoming and outgoing Flows. The equations in the Flows ''births'' and ''deaths'' are evaluated at each time step and add (respectively subtracts) their value to the value of the Stock ''pop'', which keeps a running tally of total population. These Flows use value provided by the sliders ''birth_rate'' and ''death_rate'', respectively, multiplying them by the current value of ''pop''.

Rsalter at 21:12, 29 January 2018

2018-01-29T21:12:50Z

← Older revision		Revision as of 21:12, 29 January 2018
Line 1:		Line 1:
	[[File:simplepop.png\|thumb\|Simple Population Model]]		[[File:simplepop.png\|thumb\|Simple Population Model: Design Frame]]
	This very simple model demonstrate the basic features of stocks and flows. The equation in the flow is evaluated at each time step and adds its value to the value of the stock, which keeps a running tally of total population. There are both growth and loss dynamics, which rely on the values respectively defined by the sliders birth_rate and death_rate. times the total population at a given time step.		[[File:simplepoprun.png\|thumb\|Simple Population Model: Runtime Frame]]
			This very simple model demonstrate the basic features of stocks and flows. The equation in the flow is evaluated at each time step and adds its value to the value of the stock, which keeps a running tally of total population. There are both growth and loss dynamics, which rely on the values respectively defined by the sliders ''birth_rate'' and ''death_rate''. times the total population at a given time step.

Rsalter: Created page with "Simple Population Model This very simple model demonstrate the basic features of stocks and flows. The equation in the flow is evaluated at each t..."

2018-01-29T21:07:02Z

Created page with "thumb|Simple Population Model This very simple model demonstrate the basic features of stocks and flows. The equation in the flow is evaluated at each t..."

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[[File:simplepop.png|thumb|Simple Population Model]]
This very simple model demonstrate the basic features of stocks and flows. The equation in the flow is evaluated at each time step and adds its value to the value of the stock, which keeps a running tally of total population. There are both growth and loss dynamics, which rely on the values respectively defined by the sliders birth_rate and death_rate. times the total population at a given time step.