Distribution Type Column
Column Type = Text (Dropdown Menu)
Currently, there are five distribution types. The result of sampling from these distributions is then divided by 100 and added to one. They are then multiplied by the input variable value (or 1 in the case of Resources) to give the sample value for the input variable for the particular risk iteration Aurora is currently performing.
The Distribution Types are:
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Uniform - flat distribution having equal probability over the range.
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Normal - normal distribution defined by both mean and standard deviation.
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Lognormal - A lognormal distribution defined by both mean and standard deviation.
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Binomial - an on/off distribution where Parameter 1 defines the probability (in percent) of the distribution being on. This distribution is included for modeling unit forced outage, and is only applied to resources.
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Stepped Uniform - Used for transmission link outage only, % at 0, % at max, uniform probability in-between. This distribution is not selectable in the dropdown and will automatically be used when an input transmission link is chosen as the Input Variable type. For input transmission link records, Distribution Parameter 1 equals the probability (in percent) the link capacity will be at zero, Parameter 2 equals the probability (in percent) the link capacity will be at maximum.
Distribution Type Column
