JayRogers

High-Low Difference Channels r2

About:

I developed the original as an experiment to potentially replace or augment my BB and RSI based strategies. After some back-testing I could see some really interesting results but it wasn't quite where I wanted it, so after some tweaking and further back-testing, and adding in more MA options, here we are. Mostly tested on 1h and greater time-frames using default settings.

Description / Usage:
  • Adjust length and multiplier much the same way you would expect with Bollinger Bands .
  • Multiplier of 1 gives you a base channel consisting of one high, and one low sourced MA
  • The outer channels are increments of the base high-low channel width, away from the hl2 sourced MA

r2 Changes:
  • Increased amount of up/down channels to 5, and lowered multiplier default to 1 (previously 1.5)
  • Tweaked default colour scheme.
  • Pick your MA poison of choice! Added choices for all your common MA variants.

Issues:
  • VWMA bugs out and refuses to draw sometimes - no idea why.

Additional Notes:

All MA variants available in this script were derived directly from the sources of those available within the pine editor. I have been fairly diligent trying to ensure they all function correctly, but I can't 100% guarantee it, so if anyone gives the script a try, or dives into the code and see's something odd - don't hesitate to let me know!

It would also be fantastic to hear feedback from anyone who finds use for this, to augment an existing strategy/idea, or develop something new. :)
ความคิดเห็น: Final revision done. No more tweaks/changes pending.

Added (optional) select-able fixed resolutions, so you can have 1 hour bands on your 1 minute chart if you do so feel inclined.

Otherwise just some minor code cleaning and proper commenting:
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//@version=2

study(title="High-Low Difference Channels r2 - SMA/EMA/WMA/VWMA/SMMA/DEMA/HullMA/LSMA", shorttitle="HLDC_r2", overlay=true)

// Revision:    2
// Author:      JayRogers
//
// Description / Usage:
//  - Adjust length and multiplier much the same way you would expect with Bollinger Bands.
//  - multiplier of 1 gives you a base channel consisting of one high, and one low sourced MA
//  - The outer channels are increments of the base high-low channel width, away from the hl2 sourced MA
//
// r2 Changes:
//  - Increased amount of up/down channels to 5, and lowered multiplier default to 1 (previously 1.5)
//  - Tweaked default colour scheme.
//  - Pick your MA poison of choice! Added choices for all your common MA variants.
//
// Issues *
//  - VWMA bugs out and refuses to draw sometimes. No idea why.

hlc_typeString  = input(defval="SMA", title="Pick your Poison: SMA, EMA, WMA, VWMA, SMMA, DEMA, HullMA, LSMA (case sensitive)", type=string)
hlc_length      = input(defval=50, title="Channel Length", minval=1)
hlc_diffMult    = input(defval=1.0, title="Channel Width Multiplier", minval=0.1, maxval=50)
lsma_offset     = input(defval=0, title="LSMA Offset (only affects LSMA)")

maVariant(maT, maS, maL) =>
    v1 = sma(maS, maL)                                                  // Simple
    v2 = ema(maS, maL)                                                  // Exponential
    v3 = wma(maS, maL)                                                  // Weighted
    v4 = vwma(maS, maL)                                                 // Volume Weighted *
    v5 = na(v5[1]) ? sma(maS, maL) : (v5[1] * (maL - 1) + maS) / maL    // Smoothed
    v6 = 2 * ema(maS, maL) - ema(ema(maS, maL), maL)                    // Double Exponential
    v7 = wma(2 * wma(maS, maL / 2) - wma(maS, maL), round(sqrt(maL)))   // Hull
    v8 = linreg(maS, maL, lsma_offset)                                  // Least Squares
    // return MA poison of choice, defaults to SMA (in case of input typo)
    r = maT=="SMA"?v1 : maT=="EMA"?v2 : maT=="WMA"?v3 : maT=="VWMA"?v4 : maT=="SMMA"?v5 : maT=="DEMA"?v6 : maT=="HullMA"?v7 : maT=="LSMA"?v8 : v1

hl2_line    = maVariant(hlc_typeString, hl2, hlc_length)
high_line   = maVariant(hlc_typeString, high, hlc_length)
low_line    = maVariant(hlc_typeString, low, hlc_length)

diffMult(num) =>
    hldm = (high_line - low_line) * hlc_diffMult
    r = hldm * num

midline     = plot(hl2_line, title="Midline", color=#0066AA, linewidth=1, transp=50)

highLine    = plot(hl2_line + (diffMult(1) / 2), title="Center Channel Upper", color=silver, transp=100)
lowLine     = plot(hl2_line - (diffMult(1) / 2), title="Center Channel Lower", color=silver, transp=100)

diffUp1     = plot(hl2_line + diffMult(1), title="High Diff 1", color=#0099FF, transp=80)
diffUp2     = plot(hl2_line + diffMult(2), title="High Diff 2", color=#0099FF, transp=80)
diffUp3     = plot(hl2_line + diffMult(3), title="High Diff 3", color=#0099FF, transp=80)
diffUp4     = plot(hl2_line + diffMult(4), title="High Diff 4", color=#0099FF, transp=80)
diffUp5     = plot(hl2_line + diffMult(5), title="High Diff 5", color=#0099FF, transp=80)

diffDown1   = plot(hl2_line - diffMult(1), title="Low Diff 1", color=#0099FF, transp=80)
diffDown2   = plot(hl2_line - diffMult(2), title="Low Diff 2", color=#0099FF, transp=80)
diffDown3   = plot(hl2_line - diffMult(3), title="Low Diff 3", color=#0099FF, transp=80)
diffDown4   = plot(hl2_line - diffMult(4), title="Low Diff 4", color=#0099FF, transp=80)
diffDown5   = plot(hl2_line - diffMult(5), title="Low Diff 5", color=#0099FF, transp=80)

fill(highLine, lowLine, title="Center High-Low Fill", color=silver, transp=70)