38 lines
1.0 KiB
Plaintext
38 lines
1.0 KiB
Plaintext
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{{alias}}()
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Returns an accumulator function which incrementally computes the mean
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arctangent absolute percentage error (MAAPE).
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If provided input values, the accumulator function returns an updated mean
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arctangent absolute percentage error. If not provided input values, the
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accumulator function returns the current mean arctangent absolute percentage
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error.
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Note that, unlike the mean absolute percentage error (MAPE), the mean
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arctangent absolute percentage error is expressed in radians on the interval
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[0,π/2].
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If provided `NaN` or a value which, when used in computations, results in
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`NaN`, the accumulated value is `NaN` for all future invocations.
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Returns
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-------
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acc: Function
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Accumulator function.
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Examples
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--------
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> var accumulator = {{alias}}();
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> var m = accumulator()
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null
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> m = accumulator( 2.0, 3.0 )
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~0.3218
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> m = accumulator( 5.0, 2.0 )
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~0.6523
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> m = accumulator()
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~0.6523
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See Also
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--------
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