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Distribution functions are built-in functions which, in conjunction with streams, return random values according to a statistical distribution. The following table is a summary of available distribution functions. They are valid in any numeric expression.
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Distribution |
Syntax |
Individual Components |
|---|---|---|
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B(a,b,c,d{,<s>}) |
a=shape value 1, b=shape value 2, c=lower boundary, d=upper boundary |
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BI(a,b{,<s>}) |
a=batch size, b=probability of "success" |
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ER(a,b{,<s>}) |
a=mean value, b=parameter |
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E(a{,<s>,<ax>}) |
a=mean |
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G(a,b{,<s>,<ax>}) |
a=shape value, b=scale value |
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GEO(a{,<s>}) |
a=probability of "success" |
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IG(a,b{,<s>,<ax>}) |
a=shape value, b=scale value |
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L(a,b{,<s>,<ax>}) |
a=mean, b=standard deviation |
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N(a,b{,<s>}) |
a=mean, b=standard deviation |
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P5(a,b{,<s>,<ax>}) |
a=shape value, b=scale value |
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P6(a,b,c{,<s>,<ax>}) |
a=shape value 1, b=shape value 2, c=scale value |
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P(a{,<s>}) |
a=quantity |
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T(a,b,c{,<s>}) |
a=minimum, b=mode, c=maximum |
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U(a,b{,<s>}) |
a=mean, b=half range, |
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<name>({<s>}) |
Name of a user-defined distribution as defined in the User Distribution section |
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W(a,b{,<s>,<ax>}) |
a=shape value, b=scale value |