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/****************************************************************
Provided By : kevinmclark 01/21/2007
*****************************************************************
Description: Displays a volume churn histogram for the ES #F by using
the volume / range(high - low) for intraday intervals.
There is also a moving average built in, which can be adjusted
through the nLength parameter.
*/
function preMain() {
setStudyTitle("Volume Churn");
setCursorLabelName("Vol Churn", 0);
setCursorLabelName("Avg. Vol Churn", 1);
setPlotType(PLOTTYPE_HISTOGRAM,0);
setDefaultBarThickness(3);
setDefaultBarFgColor(Color.blue, 0);
setPlotType(PLOTTYPE_LINE, 1);
setDefaultBarFgColor(Color.red, 1);
}
var vArray = new Array();
var vInterval = getInterval();
function main(nLength) {
if (nLength == null) {
nLength = 20;
} else {
nLength = Math.round(nLength);
}
if (vInterval == "D" || vInterval == "W" || vInterval == "M" || vInterval == "T" || vInterval == "V") {
var h = high("ES #F");
var l = low("ES #F");
var V = volume("ES #F");
if (h == null || l == null || V == null) return;
var vValue = V / (h - l);
}
var nBarState = getBarState();
if (nBarState == BARSTATE_NEWBAR) {
vArray.unshift(vValue); //inserts array element to the front of the array
} else {
vArray[0] = vValue;
}
if (vArray[nLength-1] != null) { // check to make sure array is full
var vSum = 0;
for(i = 0; i < nLength; i++) {
vSum += vArray[i];
}
var vAvgVolChurn = vSum / nLength;
} else {
return;
}
if (vArray.length > nLength) vArray.pop(); // Removes last array item
return new Array(vValue, vAvgVolChurn);
}
/****************************************************************
Provided By : kevinmclark 01/21/2007
*****************************************************************
Description: Displays a volume churn histogram by using the volume / range(high - low). There is also a moving average built in, which can be adjusted
through the nLength parameter.
*/
function preMain() {
setStudyTitle("Volume Churn");
setCursorLabelName("Vol Churn", 0);
setCursorLabelName("Avg. Vol Churn", 1);
setPlotType(PLOTTYPE_HISTOGRAM,0);
setDefaultBarThickness(3);
setDefaultBarFgColor(Color.blue, 0);
setPlotType(PLOTTYPE_LINE, 1);
setDefaultBarFgColor(Color.red, 1);
}
var vArray = new Array();
var vInterval = getInterval();
function main(nLength) {
if (nLength == null) {
nLength = 20;
} else {
nLength = Math.round(nLength);
}
if (vInterval == null) return;{
var h = high(0);
var l = low(0);
var V = volume(0);
if (h == null || l == null || V == null) return;
var vValue = V / (h - l);
}
var nBarState = getBarState();
if (nBarState == BARSTATE_NEWBAR) {
vArray.unshift(vValue); //inserts array element to the front of the array
} else {
vArray[0] = vValue;
}
if (vArray[nLength-1] != null) { // check to make sure array is full
var vSum = 0;
for(i = 0; i < nLength; i++) {
vSum += vArray[i];
}
var vAvgVolChurn = vSum / nLength;
} else {
return;
}
if (vArray.length > nLength) vArray.pop(); // Removes last array item
return new Array(vValue, vAvgVolChurn);
}
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