Elder Impulse System Signal
Posted: Sun May 09, 2010 6:45 pmThe signal shows when the Elder Impulse System changes to Up, Down or Neutral.
Download the signal:
The Elder Impulse System indicator must be also installed!
Download the signal:
Elder_Impulse_System_Signal.lua- (2.66 KiB) Downloaded 1925 times
The Elder Impulse System indicator must be also installed!
- Code: Select all
function Init()
strategy:name("Elder Impulse System Signal");
strategy:description("");
strategy.parameters:addGroup("Parameter");
strategy.parameters:addInteger("EMA", "EMA periods for study", "", 13, 1, 100);
strategy.parameters:addInteger("MACDF", "MACD periods fast", "", 12, 1, 100);
strategy.parameters:addInteger("MACDS", "MACD periods slow", "", 26, 1, 100);
strategy.parameters:addString("Period", "Time frame", "", "m1");
strategy.parameters:setFlag("Period", core.FLAG_PERIODS);
strategy.parameters:addGroup("Signal");
strategy.parameters:addBoolean("ShowAlert", "Show Alert", "", true);
strategy.parameters:addBoolean("PlaySound", "Play Sound", "", false);
strategy.parameters:addFile("SoundFile", "Sound File", "", "");
end
local SoundFile;
local E, U, D, N;
local gSource = nil; -- the source stream
function Prepare()
ShowAlert = instance.parameters.ShowAlert;
if instance.parameters.PlaySound then
SoundFile = instance.parameters.SoundFile;
else
SoundFile = nil;
end
assert(not(PlaySound) or (PlaySound and SoundFile ~= ""), "The sound file must be specified");
ExtSetupSignal(profile:id() .. ":", ShowAlert);
gSource = ExtSubscribe(1, nil, instance.parameters.Period, true, "close");
E = core.indicators:create("ELDER_IMPULSE_SYSTEM", gSource, instance.parameters.EMA, instance.parameters.MACDF, instance.parameters.MACDS);
U = E:getStream(0);
D = E:getStream(1);
N = E:getStream(2);
local name = profile:id() .. "(" .. instance.bid:instrument() .. "(" .. instance.parameters.Period .. ")" .. "," .. instance.parameters.EMA .. "," .. instance.parameters.MACDF .. "," .. instance.parameters.MACDS .. ")";
instance:name(name);
end
function getElder(period)
if U:hasData(period) and U[period] == 100 then
return 1;
elseif D:hasData(period) and D[period] == 100 then
return 2;
elseif N:hasData(period) and N[period] == 100 then
return 3;
else
return 0;
end
end
-- when tick source is updated
function ExtUpdate(id, source, period)
E:update(core.UpdateLast);
local prev, curr;
prev = getElder(period - 1);
curr = getElder(period);
if prev ~= curr then
if curr == 1 then
ExtSignal(gSource, period, "UP", SoundFile);
elseif curr == 2 then
ExtSignal(gSource, period, "DOWN", SoundFile);
elseif curr == 3 then
ExtSignal(gSource, period, "NEUTRAL", SoundFile);
end
end
end
dofile(core.app_path() .. "\\strategies\\standard\\include\\helper.lua");
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, i need the higher timeframe version of elder impulse