Description:
This plots a moving average on a volume indicator.
Formula Parameters:
nMALength - Defines the length of the Moving Average. Default is 10.
Download File:
Volume_with_MA.efs
EFS Code:
PHP Code:
/*************************
Copyright © eSignal, 2003
**************************
Description: Displays volume with moving average
*/
var study = null;
function preMain() {
setStudyTitle("Volume with MA");
setCursorLabelName("Volume",0);
setCursorLabelName("MA",1);
setPlotType(PLOTTYPE_HISTOGRAM,0);
}
var vMAArray = new Array();
function main(nMALength) {
if (nMALength == null) {
nMALength = 10;
}
else {
nMALength = Math.round(nMALength);
}
// Get data
var vVol = volume();
var vOpen = open();
var vClose = close();
if (vVol == null) return;
var nBarState = getBarState();
if (nBarState == BARSTATE_NEWBAR) {
vMAArray.unshift(vVol); //inserts array element to the front of the array
}
vMAArray[0] = vVol;
if (vMAArray[nMALength-1] != null) {
var vSum = 0;
for (i=0; i <= nMALength-1; i++) {
vSum += vMAArray[i];
}
var vMAofVol = vSum / nMALength;
} else return;
if (vOpen <= vClose) setBarFgColor(Color.green, 0);
if (vOpen > vClose) setBarFgColor(Color.red, 0);
return new Array (vVol, vMAofVol);
}