Difference between revisions of "ChanceDist - Custom discrete distribution"

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[[category:Distribution Functions]]
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= ChanceDist( P,A,I ) =
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Creates a discrete probability distribution. A is an array of outcomes, and P is the corresponding array of probabilities. A and P must both be indexed by I.
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= When to Use =
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Use ChanceDist() instead of the probability table when:
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* The array of outcomes A is multidimensional, or
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* The outcomes and probabilities arrays are defined as other Variables; the Variables can be used in other parts of your model.
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As of build 4.0.0.51, ChanceDist cannot be used within [[Random]].  This enhancement may occur in future releases.
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= Example =
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{| border="0"
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| Index_b:
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|-
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|
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{| border="1"
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| Red || White || Blue
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|}
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|}
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{| border="0"
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| Array_1:
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|-
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| Index_b &rarr;
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|-
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|
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{| border="1"
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! Red !! White !! Blue
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|-
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| 0.3 || 0.2 || 0.5
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|}
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|}
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Usage:
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ChanceDist(Array_q,Index_b,Index_b)
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= See Also =
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* [[ProbTable]]
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* [[Uniform]]

Revision as of 23:32, 1 August 2007


ChanceDist( P,A,I )

Creates a discrete probability distribution. A is an array of outcomes, and P is the corresponding array of probabilities. A and P must both be indexed by I.

When to Use

Use ChanceDist() instead of the probability table when:

  • The array of outcomes A is multidimensional, or
  • The outcomes and probabilities arrays are defined as other Variables; the Variables can be used in other parts of your model.

As of build 4.0.0.51, ChanceDist cannot be used within Random. This enhancement may occur in future releases.

Example

Index_b:
Red White Blue
Array_1:
Index_b →
Red White Blue
0.3 0.2 0.5

Usage: 

ChanceDist(Array_q,Index_b,Index_b)

See Also

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