​

function preload(){

  cities = loadTable('worldcities_edited.csv', 'csv', 'header');

}

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

  //retrive data

  let numRows = cities.getRowCount();

  let lat = cities.getColumn('lat');

  let lng = cities.getColumn('lng');

  let population = cities.getColumn('population');

}