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Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Fri Feb 26, 2010 7:49 pm
by Nikolay.Gekht
GMMA (Guppy's Multiple Moving Average) is 12 EMA lines:

1) Short (Fast) Group:
EMA(3), EMA(5), EMA(8), EMA(10), EMA(12), EMA(15)

1) Long (Slow) Group:
EMA(30), EMA(35), EMA(40), EMA(45), EMA(50), EMA(60)

GMMACD (Guppy's Multiple Moving Average Convergence/Divergence) is calculated as:
f = SUM(Fast EMA's)
s = SUM(Slow EMA's)
GMMACD = (s - f) / s * 100


gmma.png


GMMA.lua
Code: Select all
function Init()
    indicator:name("Guppy's Multiple Moving Average");
    indicator:requiredSource(core.Tick);
    indicator:type(core.Indicator);

    indicator.parameters:addColor("S_COLOR", "Color for the short EMA group", "", core.rgb(0, 0, 255));
    indicator.parameters:addColor("L_COLOR", "Color for the long EMA group", "", core.rgb(255, 0, 0));
end

local source = nil;
local EMAs = {};    -- an array of outputs

function CreateEMA(index, N, color, name)
    local label;
    -- line label
    label = "EMA" .. N;
    -- create the line
    EMAs[index] = instance:addStream(label, core.Line, name .. label, label,
                                     color, source:first() + N - 1);
end

function Prepare()
    source = instance.source;
    local name;

    -- set the indicator name (use the short name of our indicator: GMMA)
    name = profile:id() .. "(" .. source:name() .. ")";
    instance:name(name);

    CreateEMA(0, 3, instance.parameters.S_COLOR, name);
    CreateEMA(1, 5, instance.parameters.S_COLOR, name);
    CreateEMA(2, 8, instance.parameters.S_COLOR, name);
    CreateEMA(3, 10, instance.parameters.S_COLOR, name);
    CreateEMA(4, 12, instance.parameters.S_COLOR, name);
    CreateEMA(5, 15, instance.parameters.S_COLOR, name);

    CreateEMA(6, 30, instance.parameters.L_COLOR, name);
    CreateEMA(7, 35, instance.parameters.L_COLOR, name);
    CreateEMA(8, 40, instance.parameters.L_COLOR, name);
    CreateEMA(9, 45, instance.parameters.L_COLOR, name);
    CreateEMA(10, 50, instance.parameters.L_COLOR, name);
    CreateEMA(11, 60, instance.parameters.L_COLOR, name);
end

function CalcEMA(index, N, period)
    local first;

    first = source:first() + N - 1;
    if period < first then
       return ;
    elseif period == first then
       -- range: period - N + 1, period - N + 2, ..., period
       local range = core.rangeTo(period, N);
       EMAs[index][period] = core.avg(source, range);
    else
       local k;
       k = 2.0 / (N + 1.0);
       -- EMA - PRICE * K - PREV EMA * (1 - K)
       EMAs[index][period] = source[period] * k + EMAs[index][period - 1] * (1 - k);
    end
end

function Update(period)
    CalcEMA(0, 3, period);
    CalcEMA(1, 5, period);
    CalcEMA(2, 8, period);
    CalcEMA(3, 10, period);
    CalcEMA(4, 12, period);
    CalcEMA(5, 15, period);

    CalcEMA(6, 30, period);
    CalcEMA(7, 35, period);
    CalcEMA(8, 40, period);
    CalcEMA(9, 45, period);
    CalcEMA(10, 50, period);
    CalcEMA(11, 60, period);
end


GMMACD.lua
Code: Select all
function Init()
    indicator:name("Guppy's Multiple Moving Average Convergence/Divergence");
    indicator:requiredSource(core.Tick);
    indicator:type(core.Oscillator);

    indicator.parameters:addColor("COLOR", "Indicator's Color", "", core.rgb(255, 0, 0));
end

local source = nil;
local GMMA = nil;
local out = nil;
local first = nil;

function Prepare()
    source = instance.source;
    local name;
    -- set the indicator name (use the short name of our indicator: GMMA)
    name = profile:id() .. "(" .. source:name() .. ")";
    instance:name(name);
    GMMA = core.indicators:create("GMMA", source);
    first = GMMA:getStream(11):first();
    out = instance:addStream("H", core.Bar, name .. ".H", "H", instance.parameters.COLOR, first);
    out:addLevel(0);
end

function Update(period, mode)
    GMMA:update(mode);

    if (period >= first) then
        local f, s;
        f = GMMA:getStream(0)[period] + GMMA:getStream(1)[period] + GMMA:getStream(2)[period] +
            GMMA:getStream(3)[period] + GMMA:getStream(4)[period] + GMMA:getStream(5)[period];
        s = GMMA:getStream(6)[period] + GMMA:getStream(7)[period] + GMMA:getStream(9)[period] +
            GMMA:getStream(9)[period] + GMMA:getStream(10)[period] + GMMA:getStream(11)[period];
        out[period] = (f - s) / s * 100;
    end
end


Download:
GMMA.lua
(4 KiB) Downloaded 7159 times

GMMACD.lua
(1.32 KiB) Downloaded 5798 times

Note: you must have GMMA.lua installed in order to use GMMACD.lua


CGMMA.png

Version that allows you to define EMA periods.
CGMMA.lua
(5.25 KiB) Downloaded 2672 times

CGMMACD.lua
(2.19 KiB) Downloaded 2350 times

Note: you must have CGMMA.lua installed in order to use CGMMACD.lua

EURUSD D1 (07-04-2016 0010).png

GMMACD Overlay.lua
(3.87 KiB) Downloaded 274 times

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Mon Jun 07, 2010 4:38 am
by air2art
hi any chance for a signal when the oscilaltor crossess above/below the 0 line
Thanks

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Tue Jun 08, 2010 1:29 pm
by Apprentice

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Tue Aug 31, 2010 2:24 pm
by Jigit Jigit
Thanks a lot for this one.
I've just started using GMMA and I already love it.

But I'm also a very unexperienced demo trader so...
Can someone, please, explain it to me how this GMMACD indicator works?

Cheers

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Thu Sep 02, 2010 12:10 pm
by Nikolay.Gekht
As said in the first post GMMACD is the indicator which shows relationship between fast and slow moving averages of GMMA indicator. When the indicator is above zero, the sum of fast MA's is above the sum of slow MAs, when it is below zero - the fast MA's are below slow MA's. The using of the "cross zero" signal is similar to use of two MA intersection. When it goes above zero - it indicates the uptrend. When it goes below zero - it indicates the downtrend. Because, like any MA indicator is a bit inertial (i.e. it shows signal with a lag), the trend must be long enough to be successfully detected.

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Tue Sep 21, 2010 4:15 pm
by Apprentice
GMMA Style Update

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Thu Jan 12, 2012 4:14 am
by Jigit Jigit
Great job. Thank you.
Could you possibly add a line following the ends of the bars of the histogram - something like the slow CCI line in Woodies CCI indicator. It would make the indicator even more readable. Its colour could be specified by the user.

Cheers

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Fri Jan 13, 2012 3:48 am
by Apprentice
Your request is added to the developmental cue.

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Fri Jan 13, 2012 7:20 am
by jackfx09
Nice work!

Simple and effective indicator!

Could we please have the OPTION of changing the time frames for the EMA's used? Example:

2,5,10,17,25,50 for the short (FAST) and
50,100,200,350,500,1000 for the long (SLOW) groups


Thanks!
sjc

Re: Guppy's Multiple Moving Average and Convergence/Divergence

PostPosted: Sun Jan 15, 2012 4:42 am
by Apprentice
Your request is added to the developmental cue.