selectRandomWeighted

-wrong parameter ("arma3dev") defined!-[[:Category:Introduced with arma3dev version 1.73|1.73]]

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Description

Description:

Returns a random element from the given array according to assigned weights. Engine solution to BIS_fnc_selectRandomWeighted. A few notes:

• Negative weights are not supported
• If an item's weight is 0, the item is ignored
• Weight strength is relative and calculated from the range [0 ... maxWeight]
• If numbers of items and weights do not match, the shortest array is used
• A single array Syntax is slightly faster then Alt Syntax

Groups:

Uncategorised

Syntax

Syntax:

selectRandomWeighted valuesAndWeights

Parameters:

valuesAndWeights: Array - array in format [value1, weight1, value2, weight2...], where:

• value: Anything - weighted value
• weight: Number - values relative weight

Return Value:

Anything - random weighted value or Nothing if array is empty or all weights are 0

Alternative Syntax

Syntax:

values selectRandomWeighted weights

Parameters:

values: Array - array of Anything

weights: Array - array of Numbers

Return Value:

Anything - random weighted value or Nothing if any of arrays is empty or all weights are 0

Examples

Example 1:

_randomWeightedElement = selectRandomWeighted [1,0.1,2,0.2,3,1.3,4,2.4,5,7.5];

Example 2:

_randomWeightedElement = [1,2,3,4,5] selectRandomWeighted [0.1,0.2,1.3,2.4,7.5];

Additional Information

See also:

randomselectselectRandomselectMinselectMax

Notes

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Only post proven facts here! Add Note

[[Category:Introduced with arma3dev version 1.73]][[ Category: arma3dev: New Scripting Commands | SELECTRANDOMWEIGHTED]][[ Category: arma3dev: Scripting Commands | SELECTRANDOMWEIGHTED]]

Posted on June 26, 2017 - 19:17 (UTC)

Killzone Kid

A 10000 runs of the following code: