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DELAY INFORMATION (input, delay time, initial value) discrete INFORMATION DELAY |
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The same as DELAY FIXED except that delay time can be a variable. If delay time is decreasing some values of the input will be discarded and replaced by more recent inputs. If delay time is increasing existing values will be held.
Restrictions: DELAY INFORMATION must directly follow the equal sign. Vensim treats the variable on the left-hand side of the equation as a Level variable. In the Equation Editor choose type Level, subtype Information Delay.
| Units: | DELAY INFORMATION ( unit , time, unit ) --> unit |
The input, initial value and output must all have the same units. The delay time must have the same units as TIME STEP.
Examples
| R = RAMP(1,10,60) ~~| |
SS1 = DELAY INFORMATION(R,15+STEP(15,40),0) ~~|
SS2 = DELAY INFORMATION(R,15-STEP(10,40),0) ~~|
Availability: Not PLE or PLE Plus.
See also: DELAY MATERIAL, DELAY FIXED
Sample model: DELAY INFORMATION.mdl in FunctionExamples
