Buongiorno,
chiedo cortese traduzione del seguente codice che mi sembra interessante.
Grazie per l’aiuto.
https://it.tradingview.com/script/xtuVIaa8-Hull-Butterfly-Oscillator-LuxAlgo/
// This work is licensed under a Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) https://creativecommons.org/licenses/by-nc-sa/4.0/
// © LuxAlgo
//@version=5
indicator(“Hull Butterfly Oscillator [LuxAlgo]”, “Hull Butterfly Oscillator [LuxAlgo]”)
//—————————————————————————–}
//Settings
//—————————————————-a————————-{
length = input(14)
mult = input(2., ‘Levels Multiplier’)
src = input(close)
//Style
bull_css_0 = input.color(color.new(#0cb51a, 50), ‘Bullish Gradient’
, inline = ‘inline0’
, group = ‘Style’)
bull_css_1 = input.color(#0cb51a, ”
, inline = ‘inline0’
, group = ‘Style’)
bear_css_0 = input.color(color.new(#ff1100, 50), ‘Bearish Gradient’
, inline = ‘inline1’
, group = ‘Style’)
bear_css_1 = input.color(#ff1100, ”
, inline = ‘inline1’
, group = ‘Style’)
//—————————————————————————–}
//Normalization variables
//—————————————————————————–{
var short_len = int(length / 2)
var hull_len = int(math.sqrt(length))
var den1 = short_len * (short_len + 1) / 2
var den2 = length * (length + 1) / 2
var den3 = hull_len * (hull_len + 1) / 2
//—————————————————————————–}
//Hull coefficients
//—————————————————————————–{
var lcwa_coeffs = array.new_float(hull_len, 0)
var hull_coeffs = array.new_float(0)
if barstate.isfirst
//Linearly combined WMA coeffs
for i = 0 to length-1
sum1 = math.max(short_len – i, 0)
sum2 = length – i
array.unshift(lcwa_coeffs, 2 * (sum1 / den1) – (sum2 / den2))
//Zero padding of linearly combined WMA coeffs
for i = 0 to hull_len-2
array.unshift(lcwa_coeffs, 0)
//WMA convolution of linearly combined WMA coeffs
for i = hull_len to array.size(lcwa_coeffs)-1
sum3 = 0.
for j = i-hull_len to i-1
sum3 += array.get(lcwa_coeffs, j) * (i – j)
array.unshift(hull_coeffs, sum3 / den3)
//—————————————————————————–}
//Hull squeeze oscillator
//—————————————————————————–{
var os = 0
var len = array.size(hull_coeffs)-1
hma = 0.
inv_hma = 0.
for i = 0 to len
hma += src[i] * array.get(hull_coeffs, i)
inv_hma += src[len-i] * array.get(hull_coeffs, i)
hso = hma – inv_hma
cmean = ta.cum(math.abs(hso)) / bar_index * mult
os := ta.cross(hso, cmean) or ta.cross(hso, -cmean) ? 0
: hso < hso[1] and hso > cmean ? -1
: hso > hso[1] and hso < -cmean ? 1
: os
//—————————————————————————–}
//Plot
//—————————————————————————–{
//Colors
css0 = color.from_gradient(hso, 0, cmean, bull_css_0, bull_css_1)
css1 = color.from_gradient(hso, -cmean, 0, bear_css_1, bear_css_0)
css = hso > 0 ? css0 : css1
//Oscillator line/histogram
plot(hso, ‘Hull Butterfly’, css
, style = plot.style_histogram)
plot(hso, ‘Hull Butterfly’, chart.fg_color)
//Dots
plot(os > os[1] and os == 1 ? hso : na, ‘Bullish Dot’
, bull_css_1
, 2
, plot.style_circles)
plot(os < os[1] and os == -1 ? hso : na, ‘Bearish Dot’
, bear_css_1
, 2
, plot.style_circles)
//Levels
plot(cmean, color = color.gray, editable = false)
plot(cmean / 2, color = color.gray, editable = false)
plot(-cmean / 2, color = color.gray, editable = false)
plot(-cmean, color = color.gray, editable = false)
//—————————————————————————–}
