33 lines
823 B
Plaintext
33 lines
823 B
Plaintext
|
|
{{alias}}()
|
|
Returns an accumulator function which incrementally computes the mean
|
|
absolute percentage error (MAPE).
|
|
|
|
If provided input values, the accumulator function returns an updated mean
|
|
absolute percentage error. If not provided input values, the accumulator
|
|
function returns the current mean absolute percentage error.
|
|
|
|
If provided `NaN` or a value which, when used in computations, results in
|
|
`NaN`, the accumulated value is `NaN` for all future invocations.
|
|
|
|
Returns
|
|
-------
|
|
acc: Function
|
|
Accumulator function.
|
|
|
|
Examples
|
|
--------
|
|
> var accumulator = {{alias}}();
|
|
> var m = accumulator()
|
|
null
|
|
> m = accumulator( 2.0, 3.0 )
|
|
~33.33
|
|
> m = accumulator( 5.0, 2.0 )
|
|
~91.67
|
|
> m = accumulator()
|
|
~91.67
|
|
|
|
See Also
|
|
--------
|
|
|