Settings = {
Name = "*MA (Moving Average)",
Period = 9,
Metod = "EMA", --(SMA, MMA, EMA, WMA, SMMA, VMA)
VType = "Close", --(Open, High, Low, Close, Volume, Median, Typical, Weighted, Difference)
line = {{
Name = "Horizontal line",
Type = TYPE_LINE,
Color = RGB(140, 140, 140)
},
{
Name = "MA",
Type = TYPE_LINE,
Color = RGB(221, 44, 44)
}
},
Round = "off",
Multiply = 1,
Horizontal_line="off"
}
function Init()
func = MA()
return #Settings.line
end
function OnCalculate(Index)
return tonumber(Settings.Horizontal_line),ConvertValue(Settings,func(Index, Settings))
end
function MA() --Moving Average ("MA")
local T_MA = {[SMA]=F_SMA(),[MMA]=F_MMA(),[EMA]=F_EMA(),[VMA]=F_VMA(),[SMMA]=F_SMMA(),[WMA]=F_WMA()}
return function (I, Fsettings, ds)
local Fsettings=(Fsettings or {})
local P = (Fsettings.Period or 14)
if (P > 0) then
return T_MA[string.upper(Fsettings.Metod or EMA)](I, P, (Fsettings.VType or CLOSE), ds)
end
return nil
end
end
------------------------------------------------------------------
----Moving Average SMA, MMA, EMA, WMA, SMMA, VMA
------------------------------------------------------------------
--[[Simple Moving Average (SMA)
SMA = sum(Pi) / n]]
function F_SMA()
local sum = {}
local it = {p=0, l=0}
return function (I, P, VT, ds)
if I == 1 then
sum = {}
it = {p=0, l=0}
end
if CandleExist(I,ds) then
if I~=it.p then it={p=I, l=it.l+1} end
local Ip,Ipp,Ippp = Squeeze(it.l,P),Squeeze(it.l-1,P),Squeeze(it.l-P,P)
sum[Ip] = (sum[Ipp] or 0) + GetValueEX(it.p,VT,ds)
if it.l >= P then
return (sum[Ip] - (sum[Ippp] or 0)) / P
end
end
return nil
end
end
--[[Modified Moving Average (MMA)
MMA = (MMAi-1*(n-1) + Pi) / n]]
function F_MMA()
local sum = {}
local tmp = {pp=nil, p=nil}
local it = {p=0, l=0}
return function(I, P, VT, ds)
if I == 1 then
sum = {}
tmp = {pp=nil, p=nil}
it = {p=0, l=0}
end
if CandleExist(I,ds) then
if I~=it.p then
it = {p=I, l=it.l+1}
tmp.pp = tmp.p
end
local Ip,Ipp,Ippp = Squeeze(it.l,P),Squeeze(it.l-1,P),Squeeze(it.l-P,P)
if it.l <= P + 1 then
sum[Ip] = (sum[Ipp] or 0) + GetValueEX(it.p,VT,ds)
if (it.l == P) or (it.l == P + 1) then
tmp.p = (sum[Ip] - (sum[Ippp] or 0)) / P
end
else
tmp.p = (tmp.pp*(P-1) + GetValueEX(it.p,VT,ds)) / P
end
if it.l >= P then
return tmp.p
end
end
return nil
end
end
--[[Exponential Moving Average (EMA)
EMAi = (EMAi-1*(n-1)+2*Pi) / (n+1)]]
function F_EMA()
local tmp = {pp=nil, p=nil}
local it = {p=0, l=0}
return function(I, P, VT, ds)
if I == 1 then
tmp = {pp=nil, p=nil}
it = {p=0, l=0}
end
if CandleExist(I,ds) then
if I~=it.p then
it = {p=I, l=it.l+1}
tmp.pp = tmp.p
end
if it.l == 1 then
tmp.p = GetValueEX(it.p,VT,ds)
else
tmp.p = (tmp.pp*(P-1) + 2*GetValueEX(it.p,VT,ds)) / (P+1)
end
if it.l >= P then
return tmp.p
end
end
return nil
end
end
--[[
William Moving Average (WMA)
( Previous WILLMA * ( Period - 1 ) + Data ) / Period]]
function F_WMA()
local tmp = {pp=nil, p=nil}
local it = {p=0, l=0}
return function(I, P, VT, ds)
if I == 1 then
tmp = {pp=nil, p=nil}
it = {p=0, l=0}
end
if CandleExist(I,ds) then
if I~=it.p then
it={p=I, l=it.l+1}
tmp.pp = tmp.p
end
if it.l == 1 then
tmp.p = GetValueEX(it.p,VT,ds)
else
tmp.p = (tmp.pp * (P-1) + GetValueEX(it.p,VT,ds)) / P
end
if it.l >= P then
return tmp.p
end
end
return nil
end
end
--[[Volume Adjusted Moving Average (VMA)
VMA = sum(Pi*Vi) / sum(Vi)]]
function F_VMA()
local sum = {}
local sum2 = {}
local it = {p=0, l=0}
return function(I, P, VT, ds)
if I == 1 then
sum = {}
sum2 = {}
it = {p=0, l=0}
end
if CandleExist(I,ds) then
if I~=it.p then it={p=I, l=it.l+1} end
local Ip,Ipp,Ippp = Squeeze(it.l,P),Squeeze(it.l-1,P),Squeeze(it.l-P,P)
sum[Ip] = (sum[Ipp] or 0) + GetValueEX(it.p,VT,ds) * GetValueEX(it.p,VOLUME,ds)
sum2[Ip] = (sum2[Ipp] or 0) + GetValueEX(it.p,VOLUME,ds)
if it.l >= P then
return (sum[Ip] - (sum[Ippp] or 0)) / (sum2[Ip] - (sum2[Ippp] or 0))
end
end
return nil
end
end
--[[Smoothed Moving Average (SMMA)
SMMAi = (sum(Pi) - SMMAi-1 + Pi) / n]]
function F_SMMA()
local sum = {}
local sum2 = {}
local it = {p=0, l=0}
return function(I, P, VT, ds)
if I == 1 then
sum = {}
sum2 = {}
it = {p=0, l=0}
end
if CandleExist(I,ds) then
if I~=it.p then it={p=I, l=it.l+1} end
local Ip,Ipp,Ippp = Squeeze(it.l,P),Squeeze(it.l-1,P),Squeeze(it.l-P,P)
sum[Ip] = (sum[Ipp] or 0) + GetValueEX(it.p,VT,ds)
if it.l >= P then
if it.l == P then
sum2[Ip] = (sum[Ip] - (sum[Ippp] or 0)) / P
else
sum2[Ip] = ((sum[Ip] - (sum[Ippp] or 0)) - (sum2[Ipp] or 0)+ GetValueEX(it.p,VT,ds)) / P
end
return sum2[Ip]
end
end
return nil
end
end
SMA,MMA,EMA,WMA,SMMA,VMA = "SMA","MMA","EMA","WMA","SMMA","VMA"
OPEN,HIGH,LOW,CLOSE,VOLUME,MEDIAN,TYPICAL,WEIGHTED,DIFFERENCE,ANY = "O","H","L","C","V","M","T","W","D","A"
function CandleExist(I,ds)
return (type(C)=="function" and C(I)~=nil) or
(type(ds)=="table" and (ds[I]~=nil or (type(ds.Size)=="function" and (I>0) and (I<=ds:Size()))))
end
function Squeeze(I,P)
return math.fmod(I-1,P+1)
end
function ConvertValue(T,...)
local function r(V, R)
if R and string.upper(R)== "ON" then R=0 end
if V and tonumber(R) then
if V >= 0 then return math.floor(V * 10^R + 0.5) / 10^R
else return math.ceil(V * 10^R - 0.5) / 10^R end
else return V end
end
local arg = {...}
arg.n = select('#', ...)
if arg.n > 0 then
for i = 1, arg.n do
arg[i]=arg[i] and r(arg[i] * ((T and T.Multiply) or 1), (T and T.Round) or "off")
end
return unpack(arg) ----------------------------------------------------------------------------------------------Здесь ошибка------------------------------------------------------------------------
else return nil end
end
function GetValueEX(I,VT,ds)
VT=(VT and string.upper(string.sub(VT,1,1))) or ANY
if VT == OPEN then --Open
return (O and O(I)) or (ds and ds:O(I))
elseif VT == HIGH then --High
return (H and H(I)) or (ds and ds:H(I))
elseif VT == LOW then --Low
return (L and L(I)) or (ds and ds:L(I))
elseif VT == CLOSE then --Close
return (C and C(I)) or (ds and ds:C(I))
elseif VT == VOLUME then --Volume
return (V and V(I)) or (ds and ds:V(I))
elseif VT == MEDIAN then --Median
return ((GetValueEX(I,HIGH,ds) + GetValueEX(I,LOW,ds)) / 2)
elseif VT == TYPICAL then --Typical
return ((GetValueEX(I,MEDIAN,ds) * 2 + GetValueEX(I,CLOSE,ds))/3)
elseif VT == WEIGHTED then --Weighted
return ((GetValueEX(I,TYPICAL,ds) * 3 + GetValueEX(I,OPEN,ds))/4)
elseif VT == DIFFERENCE then --Difference
return (GetValueEX(I,HIGH,ds) - GetValueEX(I,LOW,ds))
else --Any
return (ds and ds[I])
end
return nil
end
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