EVE Technology Lab

I am working with Steve's github code, and was wondering if someone could help me get unstuck.

In my google spreadsheet, I have a column of TypeIDs, some of which repeat. Steve's code seems to ignore repetitions. if there any way of changing the code to not do this? Here is the code:

function loadSystemPrices(priceIDs,systemID,cachebuster){
  if (typeof systemID == 'undefined'){
    systemID=30000142;
  }
  if (typeof priceIDs == 'undefined'){
    throw 'need typeids';
  }
  if (typeof cachebuster == 'undefined'){
    cachebuster=1;
  }
  var prices = new Array();
  var dirtyTypeIds = new Array();
  var cleanTypeIds = new Array();
  var url="http://api.eve-central.com/api/marketstat?cachebuster="+cachebuster+"&usesystem="+systemID+"&typeid=";
  priceIDs.forEach (function (row) {
    row.forEach ( function (cell) {
      if (typeof(cell) === 'number' ) {
        dirtyTypeIds.push(cell);
      }
    });
  });
  cleanTypeIds = dirtyTypeIds.filter(function(v,i,a) {
    return a.indexOf(v)===i;
  });
  var parameters = {method : "get", payload : ""};
  
  var o,j,temparray,chunk = 100;
  for (o=0,j=cleanTypeIds.length; o < j; o+=chunk) {
    temparray = cleanTypeIds.slice(o,o+chunk);
    var xmlFeed = UrlFetchApp.fetch(url+temparray.join("&typeid="), parameters).getContentText();
    var xml = XmlService.parse(xmlFeed);
    if(xml) {
      var rows=xml.getRootElement().getChild("marketstat").getChildren("type");
      for(var i = 0; i < rows.length; i++) {
        var price=[parseFloat(rows[i].getChild("buy").getChild("max").getValue()),
                   parseFloat(rows[i].getChild("sell").getChild("min").getValue())];
        prices.push(price);
      }
    }
  }
  return prices;
}

I am thinking if may have something to do with the section:

priceIDs.forEach (function (row) {
    row.forEach ( function (cell) {
      if (typeof(cell) === 'number' ) {
        dirtyTypeIds.push(cell);

Thanks!