mirror of
https://github.com/mihakralj/QuanTAlib.git
synced 2026-08-07 05:27:43 +00:00
68 lines
3.0 KiB
Plaintext
68 lines
3.0 KiB
Plaintext
|
// Licensed under the Apache License, Version 2.0
|
||
|
|
// © mihakralj
|
||
|
|
//@version=6
|
||
|
|
indicator("TTM Wave (TTM_WAVE)", "TTM_WAVE", overlay=false)
|
||
|
|
|
||
|
|
//@function EMA — standard exponential moving average for MACD computation.
|
||
|
|
//@param src Source series
|
||
|
|
//@param length EMA period
|
||
|
|
//@returns EMA value
|
||
|
|
ema_calc(series float src, simple int length) =>
|
||
|
|
float alpha = 2.0 / (length + 1)
|
||
|
|
var float result = 0.0
|
||
|
|
result := bar_index == 0 ? src : alpha * src + (1 - alpha) * result
|
||
|
|
result
|
||
|
|
|
||
|
|
//@function MACD histogram — (fast_ema - slow_ema) - signal_ema(fast_ema - slow_ema)
|
||
|
|
// This is the second derivative of momentum: acceleration of the spread.
|
||
|
|
//@param src Source series
|
||
|
|
//@param fast Fast EMA period
|
||
|
|
//@param slow Slow EMA period
|
||
|
|
//@param signal Signal EMA period (same as slow for TTM Wave)
|
||
|
|
//@returns MACD histogram value
|
||
|
|
macd_hist(series float src, simple int fast, simple int slow, simple int signal) =>
|
||
|
|
float fast_ema = ema_calc(src, fast)
|
||
|
|
float slow_ema = ema_calc(src, slow)
|
||
|
|
float macd_line = fast_ema - slow_ema
|
||
|
|
float signal_line = ema_calc(macd_line, signal)
|
||
|
|
macd_line - signal_line
|
||
|
|
|
||
|
|
//@function TTM Wave — six parallel MACD histogram channels at Fibonacci periods.
|
||
|
|
// Wave A (short-term): channels 1 (8,34,34) and 2 (8,55,55)
|
||
|
|
// Wave B (medium-term): channels 3 (8,89,89) and 4 (8,144,144)
|
||
|
|
// Wave C (long-term): channels 5 (8,233,233) and 6 (8,377,377)
|
||
|
|
// All channels share fast period 8. Signal period equals slow period.
|
||
|
|
//@param src Source series (default: close)
|
||
|
|
//@returns [waveA1, waveA2, waveB1, waveB2, waveC1, waveC2]
|
||
|
|
//@reference John Carter, "Mastering the Trade" (2005, 2012)
|
||
|
|
//@optimized Six independent EMA cascades, O(1) per bar per channel
|
||
|
|
ttm_wave(series float src) =>
|
||
|
|
float waveA1 = macd_hist(src, 8, 34, 34)
|
||
|
|
float waveA2 = macd_hist(src, 8, 55, 55)
|
||
|
|
float waveB1 = macd_hist(src, 8, 89, 89)
|
||
|
|
float waveB2 = macd_hist(src, 8, 144, 144)
|
||
|
|
float waveC1 = macd_hist(src, 8, 233, 233)
|
||
|
|
float waveC2 = macd_hist(src, 8, 377, 377)
|
||
|
|
[waveA1, waveA2, waveB1, waveB2, waveC1, waveC2]
|
||
|
|
|
||
|
|
// ── Inputs ──
|
||
|
|
float i_src = input.source(close, "Source")
|
||
|
|
|
||
|
|
// ── Calculation ──
|
||
|
|
[waveA1, waveA2, waveB1, waveB2, waveC1, waveC2] = ttm_wave(i_src)
|
||
|
|
|
||
|
|
// ── Plot (thinkorswim color convention) ──
|
||
|
|
// Wave A: yellow/green (short-term momentum)
|
||
|
|
plot(waveA1, "Wave A1", color=color.yellow, style=plot.style_histogram, linewidth=2)
|
||
|
|
plot(waveA2, "Wave A2", color=color.lime, style=plot.style_histogram, linewidth=2)
|
||
|
|
|
||
|
|
// Wave B: magenta/pink (medium-term momentum)
|
||
|
|
plot(waveB1, "Wave B1", color=color.fuchsia, style=plot.style_histogram, linewidth=2)
|
||
|
|
plot(waveB2, "Wave B2", color=color.new(color.fuchsia, 40), style=plot.style_histogram, linewidth=2)
|
||
|
|
|
||
|
|
// Wave C: red/orange (long-term momentum)
|
||
|
|
plot(waveC1, "Wave C1", color=color.red, style=plot.style_histogram, linewidth=2)
|
||
|
|
plot(waveC2, "Wave C2", color=color.orange, style=plot.style_histogram, linewidth=2)
|
||
|
|
|
||
|
|
hline(0, "Zero", color=color.gray, linestyle=hline.style_dotted)
|