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STARC Bands
Source: https://fxcodebase.com/code/viewtopic.php?f=17&t=228
Forum: 17 · Topic 228 · 7 post(s)
STARC Bands
TonyMod · Wed Jan 06, 2010 1:58 pm
Hello Everybody,
Here is the STARC Bands indicator that was developed by user’s request. Original topic with the request: http://www.fxcodebase.com/code/viewtopic.php?f=18&t=159
Description on how to use this indicator you can find here: http://www.investopedia.com/terms/s/starc.asp
Screenshot:
Screenshot from MarketScope.
Download:
Source:
Code: Select all `— Indicator profile initialization routine – Defines indicator profile properties and indicator parameters function Init() indicator:name(“STARC Band”); indicator:description(“Indicates upper and lower limits of price movement.”); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addInteger(“USM”, “Multiplier”, “The deviation multiplier”, 2); indicator.parameters:addInteger(“SMA_N”, “Number of MVA periods”, “The number of periods used in the Moving Average calculation”, 6); indicator.parameters:addInteger(“ATR_N”, “Number of ATR periods”, “The number of periods used in the Average True Range calculation”, 14); indicator.parameters:addColor(“UB_color”, “Upper line color”, “The color of the upper line”, core.rgb(0, 255, 0)); indicator.parameters:addColor(“LB_color”, “Lower line color”, “The color of the lower line”, core.rgb(255,0,0)); indicator.parameters:addColor(“AL_color”, “Average line color”, “The color of the average line”, core.rgb(192,192,192)); end
– Parameters block local USM;
local first; local source = nil;
– internal indicators local SMA = nil; local ATR = nil;
– Streams block local UB = nil; local LB = nil; local AL = nil;
– Indicator instance initialization routine – Processes indicator parameters and creates output streams function Prepare() USM = instance.parameters.USM; source = instance.source; local SMA_N = instance.parameters.SMA_N; local ATR_N = instance.parameters.ATR_N; local PriceType = instance.parameters.SMA_source; local name = profile:id() .. “(“ .. source:name() .. “, “.. USM .. “, “.. SMA_N .. “, “.. ATR_N .. “)”; instance:name(name); local pricestream = source.close; SMA = core.indicators:create(“MVA”, pricestream, SMA_N); ATR = core.indicators:create(“ATR”, source, ATR_N); first = math.max(SMA.DATA:first(), ATR.DATA:first()); UB = instance:addStream(“UB”, core.Line, name, “Uppper Band”, instance.parameters.UB_color, first); LB = instance:addStream(“LB”, core.Line, name, “Lower Band”, instance.parameters.LB_color, first); AL = instance:addStream(“AL”, core.Line, name, “Average”, instance.parameters.AL_color, first); end
– Indicator calculation routine – TODO: Add your code for calculation output values function Update(period, mode) SMA:update(mode); ATR:update(mode);
if period >= first and source:hasData(period) then local smaVal = SMA.DATA[period]; local atrVal = USM * ATR.DATA[period];
UB[period] = smaVal + atrVal; LB[period] = smaVal - atrVal; AL[period] = smaVal; end end`
Respond to this topic if you have questions.
Re: STARC Bands
ausjus18 · Sun May 30, 2010 6:29 am
This is a really useful indicator. Is there a way of allowing multipliers that are 0.1 increments, not just limited to 1,2,3 etc. Thanks.
Re: STARC Bands
Nikolay.Gekht · Mon May 31, 2010 11:30 am
Yes, it is very easy. Only one line must be replaced indicator.parameters:addInteger(“USM”, “Multiplier”, “The deviation multiplier”, 2); with indicator.parameters:addDouble(“USM”, “Multiplier”, “The deviation multiplier”, 2);
Download the modified version.
Re: STARC Bands
ausjus18 · Tue Jun 01, 2010 8:14 pm
That’s fantastic! Thank you Nikolay! Really appreciate your help. Jürgen
Re: STARC Bands
Thecity · Sun Apr 26, 2015 4:02 pm
Hello, It would be nice to have the possibility to choose from differents type of the moving average (Ema for example).
The concept “MA + ATR*multiplier” it’s really interesting, thank you.
Re: STARC Bands
Apprentice · Mon Apr 27, 2015 2:55 am
Customizable STARC.lua Added.
Re: STARC Bands
Apprentice · Mon Oct 29, 2018 7:33 am
The indicator was revised and updated.