How can we add int(1) at Woodies_LSMA.efs.
I try the following but not working
/*************************
Copyright © eSignal, 2003
**************************
Description: Calculates the Least Square Moving Average (LSMA)
based on theories of "Woodie".
MA Length = 25
MA Offset = 0
MA Source = HLC/3
Version Control:
1.1 -- Corrected bug that didn't offset the LSMA properly.
1.2 -- Offset problem corrected.
*/
function preMain()
{
setPriceStudy(true);
setStudyTitle("AAA_Woodies LSMA");
setCursorLabelName("LSMA");
setDefaultBarFgColor(Color.red, 0);
setDefaultBarThickness(2);
}
var vPrice = null;
var vInit = false;
var LSMA_Array = new Array();
function main(nLength,nOffset)
{
if (nLength == null) nLength = 25;
if (nOffset == null) {
nOffset = 0;
} else {
nOffset = Math.abs(Math.round(nOffset));
}
if (vInit == false) {
vPrice = new Array(nLength);
vInit = true;
}
vClose = close(inv(1));
vHigh = high(inv(1));
vLow = low(inv(1));
if (vClose == null) return;
if (vHigh == null) return;
if (vLow == null) return;
if (getBarState() == BARSTATE_NEWBAR) {
if (vPrice[nLength-1] != null) vPrice.pop();
vPrice.unshift(vHLC3);
}
vHLC3 = (vClose + vHigh + vLow) / 3 ;
vPrice[0] = vHLC3;
if (vPrice[nLength-1] == null) return;
var Num1 = 0.0;
var Num2 = 0.0;
var SumBars = nLength * (nLength - 1) * 0.5;
var SumSqrBars = (nLength - 1) * nLength * (2 * nLength - 1) / 6;
var SumY = 0.0;
var Sum1 = 0.0;
var Sum2 = 0.0;
var Slope = 0.0;
var Intercept = 0.0;
for (i = 0; i < nLength; i++)
{
SumY += vPrice[i];
Sum1 += i * vPrice[i];
}
Sum2 = SumBars * SumY;
Num1 = nLength * Sum1 - Sum2;
Num2 = SumBars * SumBars - nLength * SumSqrBars;
if (Num2 != 0) Slope = Num1 / Num2;
Intercept = (SumY - Slope * SumBars) / nLength;
var LinearRegValue = Intercept + Slope * (nLength - 1);
if (getBarState() == BARSTATE_NEWBAR) {
if (LSMA_Array[nLength-1] != null) LSMA_Array.pop(); // v1.2
LSMA_Array.unshift(LinearRegValue);
}
LSMA_Array[0] = LinearRegValue;
/* *** Possible offset bug ***
if (nOffset > 0) {
return LSMA_Array[nOffset-1];
} else {
return LinearRegValue;
} */
return LSMA_Array[nOffset]; // v1.2
}
I try the following but not working
/*************************
Copyright © eSignal, 2003
**************************
Description: Calculates the Least Square Moving Average (LSMA)
based on theories of "Woodie".
MA Length = 25
MA Offset = 0
MA Source = HLC/3
Version Control:
1.1 -- Corrected bug that didn't offset the LSMA properly.
1.2 -- Offset problem corrected.
*/
function preMain()
{
setPriceStudy(true);
setStudyTitle("AAA_Woodies LSMA");
setCursorLabelName("LSMA");
setDefaultBarFgColor(Color.red, 0);
setDefaultBarThickness(2);
}
var vPrice = null;
var vInit = false;
var LSMA_Array = new Array();
function main(nLength,nOffset)
{
if (nLength == null) nLength = 25;
if (nOffset == null) {
nOffset = 0;
} else {
nOffset = Math.abs(Math.round(nOffset));
}
if (vInit == false) {
vPrice = new Array(nLength);
vInit = true;
}
vClose = close(inv(1));
vHigh = high(inv(1));
vLow = low(inv(1));
if (vClose == null) return;
if (vHigh == null) return;
if (vLow == null) return;
if (getBarState() == BARSTATE_NEWBAR) {
if (vPrice[nLength-1] != null) vPrice.pop();
vPrice.unshift(vHLC3);
}
vHLC3 = (vClose + vHigh + vLow) / 3 ;
vPrice[0] = vHLC3;
if (vPrice[nLength-1] == null) return;
var Num1 = 0.0;
var Num2 = 0.0;
var SumBars = nLength * (nLength - 1) * 0.5;
var SumSqrBars = (nLength - 1) * nLength * (2 * nLength - 1) / 6;
var SumY = 0.0;
var Sum1 = 0.0;
var Sum2 = 0.0;
var Slope = 0.0;
var Intercept = 0.0;
for (i = 0; i < nLength; i++)
{
SumY += vPrice[i];
Sum1 += i * vPrice[i];
}
Sum2 = SumBars * SumY;
Num1 = nLength * Sum1 - Sum2;
Num2 = SumBars * SumBars - nLength * SumSqrBars;
if (Num2 != 0) Slope = Num1 / Num2;
Intercept = (SumY - Slope * SumBars) / nLength;
var LinearRegValue = Intercept + Slope * (nLength - 1);
if (getBarState() == BARSTATE_NEWBAR) {
if (LSMA_Array[nLength-1] != null) LSMA_Array.pop(); // v1.2
LSMA_Array.unshift(LinearRegValue);
}
LSMA_Array[0] = LinearRegValue;
/* *** Possible offset bug ***
if (nOffset > 0) {
return LSMA_Array[nOffset-1];
} else {
return LinearRegValue;
} */
return LSMA_Array[nOffset]; // v1.2
}
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