help 1st time user

[Miketede]

lookin to try to make an djusted $tick by using a 1 min interval and adding open hi low close of period and ploting on a chart if someone could help me id appreciate it below i modified a efs someone had written but its not working


function preMain() {
setPriceStudy(true);
setStudyTitle("Adjusted Tick");
setCursorLabelName("Adjusted Tick");
// Pivot Point
setDefaultBarStyle(PS_SOLID);
setDefaultBarFgColor(Color.RGB(0,0,0));
setDefaultBarThickness(1);
}

var bInit = false;
var xOpen = null;
var xHigh = null;
var xLow = null;
var xClose = null;

function main() {

if(bInit == false){
xOpen = open(inv("M"));
xHigh = high(inv("M"));
xLow = low(inv("M"));
xClose = close(inv("M"));
bInit = true;
}

var vOpen = xOpen.getValue(-1);
var vHigh = xHigh.getValue(-1);
var vLow = xLow.getValue(-1);
var vClose = xClose.getValue(-1);

if(vOpen == null || vHigh == null || vLow == null || vClose == null)
return;

vPP = (vOpen+vHigh+vLow+vClose);

return (vPP);
}