Rolling Largest Impulse Murreys…: Free TradingView Indicator (Pine Script)

Add It to Your TradingView Chart

1Copy the scriptPress Copy script above, or the copy button on the code below.
2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.

Source Code

180 lines of Pine Script v6 from pinescript/editors_picks/rolling-largest-impulse-murreys-lines.pine, published under MPL-2.0 (file header). Keep the author's credit and licence lines when you reuse it.

rolling-largest-impulse-murreys-lines.pine

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © RicardoSantos

//@version=6
indicator(title='Rolling largest Impulse Murreys Lines', overlay=true, max_bars_back=500)

import RicardoSantos/FunctionArrayMaxSubKadanesAlgorithm/2 as msub
import RicardoSantos/ColorExtension/6 as colore

// helpers:
line_style_switch (string _style) =>
    switch (_style)
        ('dashed') => line.style_dashed
        ('dotted') => line.style_dotted
        ('solid') => line.style_solid
line_extend_switch (string _extend) =>
    switch (_extend)
        ('left') => extend.left
        ('right') => extend.right
        ('both') => extend.both
        ('none') => extend.none
label_textsize(string _size) =>
    switch (_size)
        ('auto') => size.auto
        ('huge') => size.huge
        ('large') => size.large
        ('normal') => size.normal
        ('small') => size.small
        ('tiny') => size.tiny
// inputs:
g_param = 'Parameters'
int window_size = input.int(defval=250, title='Window Size', minval=1, maxval=500, tooltip='size of data to search for largest impulse swing.', group=g_param)
bool direction = 'Bull' == input.string(defval='Bull', title='Direction of impulse', options=['Bull', 'Bear'], tooltip='prefered direction of impulse.', group=g_param)
float i_inversion_rate = input.float(defval=1.0, title='Inversion Rate', minval=0.0, maxval=1.0, tooltip='Inversion rate used to mirror the base line.', group=g_param)

g_style = 'Line Options'
i_base_color = input.color(defval=color.silver, title='Base', inline='b', group=g_style, display=display.none)
i_base_extend = line_extend_switch(input.string(defval='none', options=['left', 'right', 'both', 'none'], title='', inline='b', group=g_style, display=display.none))
i_base_style = line_style_switch(input.string(defval='solid', options=['dashed', 'dotted', 'solid'], title='', inline='b', group=g_style, display=display.none))
i_base_width = input.int(defval=1, minval=0, title='', tooltip='Base line properties.', inline='b', group=g_style, display=display.none)
i_invr_color = input.color(defval=color.silver, title='Inverse', inline='i', group=g_style, display=display.none)
i_invr_extend = line_extend_switch(input.string(defval='none', options=['left', 'right', 'both', 'none'], title='', inline='i', group=g_style, display=display.none))
i_invr_style = line_style_switch(input.string(defval='dashed', options=['dashed', 'dotted', 'solid'], title='', inline='i', group=g_style, display=display.none))
i_invr_width = input.int(defval=1, minval=0, title='', tooltip='Inverse line properties.', inline='i', group=g_style, display=display.none)
i_extend = line_extend_switch(input.string(defval='left', options=['left', 'right', 'both', 'none'], title='MML Extend', inline='00', group=g_style, display=display.none))
i_labels = input.bool(defval=true, title='', inline='00', group=g_style, display=display.none)
i_labels_textsize = input.string(defval='small', options=['auto', 'huge', 'large', 'normal', 'small', 'tiny'], title='Labels', inline='00', group=g_style, display=display.none)
i_mm01_color  = input.color(defval=color.gray, title='-2/8',                                                        inline='01', group=g_style, display=display.none)
i_mm01_style  = line_style_switch(input.string(defval='dotted', options=['dashed', 'dotted', 'solid'], title='',    inline='01', group=g_style, display=display.none))
i_mm01_width  = input.int(defval=1, minval=0, title='', tooltip='-2/8 line properties.',                            inline='01', group=g_style, display=display.none)
i_mm02_color  = input.color(defval=color.gray, title='-1/8',                                                        inline='02', group=g_style, display=display.none)
i_mm02_style  = line_style_switch(input.string(defval='dashed', options=['dashed', 'dotted', 'solid'], title='',    inline='02', group=g_style, display=display.none))
i_mm02_width  = input.int(defval=1, minval=0, title='', tooltip='-1/8 line properties.',                            inline='02', group=g_style, display=display.none)
i_mm03_color  = input.color(defval=color.aqua, title=' 0/8',                                                        inline='03', group=g_style, display=display.none)
i_mm03_style  = line_style_switch(input.string(defval='solid' , options=['dashed', 'dotted', 'solid'], title='',    inline='03', group=g_style, display=display.none))
i_mm03_width  = input.int(defval=2, minval=0, title='', tooltip=' 0/8 line properties.',                            inline='03', group=g_style, display=display.none)
i_mm04_color  = input.color(defval=color.gray, title=' 1/8',                                                        inline='04', group=g_style, display=display.none)
i_mm04_style  = line_style_switch(input.string(defval='dashed' , options=['dashed', 'dotted', 'solid'], title='',   inline='04', group=g_style, display=display.none))
i_mm04_width  = input.int(defval=1, minval=0, title='', tooltip=' 1/8 line properties.',                            inline='04', group=g_style, display=display.none)
i_mm05_color  = input.color(defval=color.gray, title=' 2/8',                                                        inline='05', group=g_style, display=display.none)
i_mm05_style  = line_style_switch(input.string(defval='solid' , options=['dashed', 'dotted', 'solid'], title='',    inline='05', group=g_style, display=display.none))
i_mm05_width  = input.int(defval=1, minval=0, title='', tooltip=' 2/8 line properties.',                            inline='05', group=g_style, display=display.none)
i_mm06_color  = input.color(defval=color.gray, title=' 3/8',                                                        inline='06', group=g_style, display=display.none)
i_mm06_style  = line_style_switch(input.string(defval='dashed' , options=['dashed', 'dotted', 'solid'], title='',   inline='06', group=g_style, display=display.none))
i_mm06_width  = input.int(defval=1, minval=0, title='', tooltip=' 3/8 line properties.',                            inline='06', group=g_style, display=display.none)
i_mm07_color  = input.color(defval=color.lime, title=' 4/8',                                                        inline='07', group=g_style, display=display.none)
i_mm07_style  = line_style_switch(input.string(defval='solid' , options=['dashed', 'dotted', 'solid'], title='',    inline='07', group=g_style, display=display.none))
i_mm07_width  = input.int(defval=2, minval=0, title='', tooltip=' 4/8 line properties.',                            inline='07', group=g_style, display=display.none)
i_mm08_color  = input.color(defval=color.gray, title=' 5/8',                                                        inline='08', group=g_style, display=display.none)
i_mm08_style  = line_style_switch(input.string(defval='dashed' , options=['dashed', 'dotted', 'solid'], title='',   inline='08', group=g_style, display=display.none))
i_mm08_width  = input.int(defval=1, minval=0, title='', tooltip=' 5/8 line properties.',                            inline='08', group=g_style, display=display.none)
i_mm09_color  = input.color(defval=color.gray, title=' 6/8',                                                        inline='09', group=g_style, display=display.none)
i_mm09_style  = line_style_switch(input.string(defval='solid' , options=['dashed', 'dotted', 'solid'], title='',    inline='09', group=g_style, display=display.none))
i_mm09_width  = input.int(defval=1, minval=0, title='', tooltip=' 6/8 line properties.',                            inline='09', group=g_style, display=display.none)
i_mm10_color  = input.color(defval=color.gray, title=' 7/8',                                                        inline='10', group=g_style, display=display.none)
i_mm10_style  = line_style_switch(input.string(defval='dashed' , options=['dashed', 'dotted', 'solid'], title='',   inline='10', group=g_style, display=display.none))
i_mm10_width  = input.int(defval=1, minval=0, title='', tooltip=' 7/8 line properties.',                            inline='10', group=g_style, display=display.none)
i_mm11_color  = input.color(defval=color.aqua, title=' 8/8',                                                        inline='11', group=g_style, display=display.none)
i_mm11_style  = line_style_switch(input.string(defval='solid' , options=['dashed', 'dotted', 'solid'], title='',    inline='11', group=g_style, display=display.none))
i_mm11_width  = input.int(defval=2, minval=0, title='', tooltip=' 8/8 line properties.',                            inline='11', group=g_style, display=display.none)
i_mm12_color  = input.color(defval=color.gray, title=' 9/8',                                                        inline='12', group=g_style, display=display.none)
i_mm12_style  = line_style_switch(input.string(defval='dashed' , options=['dashed', 'dotted', 'solid'], title='',   inline='12', group=g_style, display=display.none))
i_mm12_width  = input.int(defval=1, minval=0, title='', tooltip=' 9/8 line properties.',                            inline='12', group=g_style, display=display.none)
i_mm13_color  = input.color(defval=color.gray, title='10/8',                                                        inline='13', group=g_style, display=display.none)
i_mm13_style  = line_style_switch(input.string(defval='dotted' , options=['dashed', 'dotted', 'solid'], title='',   inline='13', group=g_style, display=display.none))
i_mm13_width  = input.int(defval=1, minval=0, title='', tooltip='10/8 line properties.',                            inline='13', group=g_style, display=display.none)
// prepare data:
float hl = (direction ? +1.0 : -1.0) * ta.change(high * low)

var float[] samples = array.new_float(size=window_size, initial_value=0.0)
array.unshift(samples, hl)
array.pop(samples)

// find the largest impulse in the data samples:
[ki_max, ki_start, ki_end] = msub.indices(samples)

bool is_new_impulse = ta.change(ki_start + ki_end) != 0

// initialize the lines:
var line[] lines = array.new_line(15)
var label[] labels = array.new_label(15)
if barstate.isfirst
    // base line:
    array.set(lines,  0, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_base_extend, i_base_color, i_base_style, i_base_width))
    array.set(lines,  1, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_invr_extend, i_invr_color, i_invr_style, i_invr_width))
    //from lowest octave to highest:
    array.set(lines,  2, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm01_color, i_mm01_style, i_mm01_width))
    array.set(lines,  3, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm02_color, i_mm02_style, i_mm02_width))
    array.set(lines,  4, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm03_color, i_mm03_style, i_mm03_width))
    array.set(lines,  5, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm04_color, i_mm04_style, i_mm04_width))
    array.set(lines,  6, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm05_color, i_mm05_style, i_mm05_width))
    array.set(lines,  7, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm06_color, i_mm06_style, i_mm06_width))
    array.set(lines,  8, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm07_color, i_mm07_style, i_mm07_width))
    array.set(lines,  9, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm08_color, i_mm08_style, i_mm08_width))
    array.set(lines, 10, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm09_color, i_mm09_style, i_mm09_width))
    array.set(lines, 11, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm10_color, i_mm10_style, i_mm10_width))
    array.set(lines, 12, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm11_color, i_mm11_style, i_mm11_width))
    array.set(lines, 13, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm12_color, i_mm12_style, i_mm12_width))
    array.set(lines, 14, line.new(bar_index, 0.0, bar_index, 0.0, xloc.bar_index, i_extend, i_mm13_color, i_mm13_style, i_mm13_width))
    //labels
    if i_labels
        array.set(labels,  2, label.new(bar_index, 0.0, '-2/8', color=i_mm01_color, style=label.style_label_right, textcolor=colore.invert(i_mm01_color), size=i_labels_textsize))
        array.set(labels,  3, label.new(bar_index, 0.0, '-1/8', color=i_mm02_color, style=label.style_label_right, textcolor=colore.invert(i_mm02_color), size=i_labels_textsize))
        array.set(labels,  4, label.new(bar_index, 0.0, ' 0/8', color=i_mm03_color, style=label.style_label_right, textcolor=colore.invert(i_mm03_color), size=i_labels_textsize))
        array.set(labels,  5, label.new(bar_index, 0.0, ' 1/8', color=i_mm04_color, style=label.style_label_right, textcolor=colore.invert(i_mm04_color), size=i_labels_textsize))
        array.set(labels,  6, label.new(bar_index, 0.0, ' 2/8', color=i_mm05_color, style=label.style_label_right, textcolor=colore.invert(i_mm05_color), size=i_labels_textsize))
        array.set(labels,  7, label.new(bar_index, 0.0, ' 3/8', color=i_mm06_color, style=label.style_label_right, textcolor=colore.invert(i_mm06_color), size=i_labels_textsize))
        array.set(labels,  8, label.new(bar_index, 0.0, ' 4/8', color=i_mm07_color, style=label.style_label_right, textcolor=colore.invert(i_mm07_color), size=i_labels_textsize))
        array.set(labels,  9, label.new(bar_index, 0.0, ' 5/8', color=i_mm08_color, style=label.style_label_right, textcolor=colore.invert(i_mm08_color), size=i_labels_textsize))
        array.set(labels, 10, label.new(bar_index, 0.0, ' 6/8', color=i_mm09_color, style=label.style_label_right, textcolor=colore.invert(i_mm09_color), size=i_labels_textsize))
        array.set(labels, 11, label.new(bar_index, 0.0, ' 7/8', color=i_mm10_color, style=label.style_label_right, textcolor=colore.invert(i_mm10_color), size=i_labels_textsize))
        array.set(labels, 12, label.new(bar_index, 0.0, ' 8/8', color=i_mm11_color, style=label.style_label_right, textcolor=colore.invert(i_mm11_color), size=i_labels_textsize))
        array.set(labels, 13, label.new(bar_index, 0.0, ' 9/8', color=i_mm12_color, style=label.style_label_right, textcolor=colore.invert(i_mm12_color), size=i_labels_textsize))
        array.set(labels, 14, label.new(bar_index, 0.0, '10/8', color=i_mm13_color, style=label.style_label_right, textcolor=colore.invert(i_mm13_color), size=i_labels_textsize))

update_label (int _n, int _x, float _y) => //{
    label _label = array.get(labels, _n)
    label.set_xy(_label, _x, _y)
//}
update_bline (int _n, int _x1, float _y1, int _x2, float _y2) => //{
    line _line = array.get(lines, _n)
    line.set_xy1(_line, _x1, _y1)
    line.set_xy2(_line, _x2, _y2)
//}
update_mline (int _n, int _x1, int _x2, float _y) => //{
    line _line = array.get(lines, _n)
    line.set_xy1(_line, _x1, _y)
    line.set_xy2(_line, _x2, _y)
    if i_labels
        update_label(_n, _x2, _y)
//}

if is_new_impulse
    float _start_value = hl2[ki_start]
    float _end_value = hl2[ki_end]
    int _x1 = bar_index - ki_start
    int _x2 = bar_index - ki_end
    float _y1 = low[ki_start]
    float _y2 = high[ki_end]
    if _end_value < _start_value
        _y1 := high[ki_start]
        _y2 := low[ki_end]

    float _range = _y2 - _y1

    update_bline(00, _x1, _y1, _x2, _y2)
    update_bline(01, _x1, _y1, _x1+(_x1-_x2), _y1+(_y2-_y1)*i_inversion_rate)
    update_mline(02, _x1, _x2, _y1 + _range * -0.250)
    update_mline(03, _x1, _x2, _y1 + _range * -0.125)
    update_mline(04, _x1, _x2, _y1)
    update_mline(05, _x1, _x2, _y1 + _range * 0.125)
    update_mline(06, _x1, _x2, _y1 + _range * 0.250)
    update_mline(07, _x1, _x2, _y1 + _range * 0.375)
    update_mline(08, _x1, _x2, _y1 + _range * 0.500)
    update_mline(09, _x1, _x2, _y1 + _range * 0.625)
    update_mline(10, _x1, _x2, _y1 + _range * 0.750)
    update_mline(11, _x1, _x2, _y1 + _range * 0.875)
    update_mline(12, _x1, _x2, _y1 + _range * 1.000)
    update_mline(13, _x1, _x2, _y1 + _range * 1.125)
    update_mline(14, _x1, _x2, _y1 + _range * 1.250)

Overview

Rolling Largest Impulse Murreys Lines projects fractional Murrey grid lines alongside base and inverse lines with text labels directly on the price chart. Main settings allow configuring the window size, selecting bullish or bearish impulse direction, modifying inversion rates, and adjusting line styles and extensions.

Kadane's algorithm for largest impulse swing detection
Dynamic Murrey Math grid level calculations
Configurable bullish or bearish impulse direction
Customizable base and inversion line projections
Adjustable line styles, label sizes, and extensions

Details

Published by

regalouisei on GitHub

Code credit

RicardoSantos, as written in the script's header

Type

Indicator, Pine Script v6

Draws

On the price chart

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.

File

pinescript/editors_picks/rolling-largest-impulse-murreys-lines.pine

Repository

github.com/regalouisei/collect-tradingview. See its other scripts in the library

Settings

The inputs you can change from the gear icon on the chart. Defaults are the author's.

Setting	Type	Default	Variable
Window Size	`int`	`250`	`window_size`
Direction of impulse	`string`	`Bull`	`Direction of impulse`
Inversion Rate	`float`	`1.0`	`i_inversion_rate`
Base	`color`	`color.silver`	`i_base_color`
	`string`	`none`
	`string`	`solid`
i_base_width	`int`	`1`	`i_base_width`
Inverse	`color`	`color.silver`	`i_invr_color`
	`string`	`none`
	`string`	`dashed`
i_invr_width	`int`	`1`	`i_invr_width`
MML Extend	`string`	`left`	`MML Extend`

Show all 40 settings

Setting	Type	Default	Variable
i_labels	`bool`	`true`	`i_labels`
Labels	`string`	`small`	`i_labels_textsize`
-2/8	`color`	`color.gray`	`i_mm01_color`
	`string`	`dotted`
i_mm01_width	`int`	`1`	`i_mm01_width`
-1/8	`color`	`color.gray`	`i_mm02_color`
	`string`	`dashed`
i_mm02_width	`int`	`1`	`i_mm02_width`
0/8	`color`	`color.aqua`	`i_mm03_color`
	`string`	`solid`
i_mm03_width	`int`	`2`	`i_mm03_width`
1/8	`color`	`color.gray`	`i_mm04_color`
	`string`	`dashed`
i_mm04_width	`int`	`1`	`i_mm04_width`
2/8	`color`	`color.gray`	`i_mm05_color`
	`string`	`solid`
i_mm05_width	`int`	`1`	`i_mm05_width`
3/8	`color`	`color.gray`	`i_mm06_color`
	`string`	`dashed`
i_mm06_width	`int`	`1`	`i_mm06_width`
4/8	`color`	`color.lime`	`i_mm07_color`
	`string`	`solid`
i_mm07_width	`int`	`2`	`i_mm07_width`
5/8	`color`	`color.gray`	`i_mm08_color`
	`string`	`dashed`
i_mm08_width	`int`	`1`	`i_mm08_width`
6/8	`color`	`color.gray`	`i_mm09_color`
	`string`	`solid`

Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

Similar Pine Scripts

Moving Average Channel

by everget

948

Moving Average Channel plots separate simple moving averages for upper and lower bands on the price chart. It fills the space between bands with semi-transparent color and colors bars green above the upper band, red below the lower band, or gray in between. Us

Indicator v4 Moving averagesSupport & resistance

Updated 10 days ago · GPL-3.0

ICT Equal Highs and Lows

by ArunKBhaskar

575

This overlay indicator finds pivot highs and lows on the price chart and compares the last two highs and the last two lows. When the percentage difference between a pair is below the Equal HL threshold, it treats them as equal levels and draws a box. Left and

Indicator v5 SMC / ICT / price actionSupport & resistance

Updated 1 year ago · MPL-2.0

Multi Alert Long/Short [Alorse]

by Alorse

330

This indicator monitors multiple cryptocurrency symbols for trading signals. It calculates and plots entry prices, take profit, and stop loss levels for each symbol including BTCUSDT, ETHUSDT, BNBUSDT and others. Price crossovers trigger buy, sell or close ale

Indicator v5 Support & resistanceScreeners & dashboards

Updated 2 months ago · None stated

Volume Profile and Indicator by DGT

by namuan

318

This overlay indicator draws a fixed-range volume profile on the price chart, splitting traded activity into up and down volume at each price level. It also plots a sentiment profile, a developing point of control, and value-area high and low around a configur

Indicator v5 VolumeSupport & resistance

Updated 2 months ago · MIT

BZ-tracker

by Allen1212

303

The BZ-tracker indicator marks ARK Invest buy and sell transactions on stock charts with labels. It plots green labels for purchases and red labels for sales, each annotated with a multiplier such as X1 or X2 to show the number of ARK ETFs trading the stock on

Indicator v4 Support & resistanceScreeners & dashboards

Updated 2 years ago · None stated

Function - Linear Regression

by ricardosantos79

261

This indicator fits a linear regression through stored pivot highs and lows and draws the resulting channel on the price chart. A function returns predicted values, maximum and minimum deviations, and the average absolute deviation. Confirmed two-bar pivots up

Indicator v5 TrendSupport & resistance

Updated 4 years ago · None stated

More indicators

Rolling Largest Impulse Murreys Lines