repl.txt (1177B)
1 2 {{alias}}( W ) 3 Returns an accumulator function which incrementally computes a moving 4 mean directional accuracy (MDA). 5 6 The `W` parameter defines the number of values over which to compute the 7 moving mean directional accuracy. 8 9 If provided input values, the accumulator function returns an updated moving 10 mean directional accuracy. If not provided input values, the accumulator 11 function returns the current moving mean directional accuracy. 12 13 As `W` (f,a) pairs are needed to fill the window buffer, the first `W-1` 14 returned values are calculated from smaller sample sizes. Until the window 15 is full, each returned value is calculated from all provided values. 16 17 Parameters 18 ---------- 19 W: integer 20 Window size. 21 22 Returns 23 ------- 24 acc: Function 25 Accumulator function. 26 27 Examples 28 -------- 29 > var accumulator = {{alias}}( 3 ); 30 > var m = accumulator() 31 null 32 > m = accumulator( 2.0, 3.0 ) 33 1.0 34 > m = accumulator( 5.0, 2.0 ) 35 0.5 36 > m = accumulator( 3.0, 2.0 ) 37 ~0.33 38 > m = accumulator( 4.0, 5.0 ) 39 ~0.33 40 > m = accumulator() 41 ~0.33 42 43 See Also 44 -------- 45