var data = [8,7,7,6,6,5,5,5,8,9,11,8,5,10]; var multiplier = 35; var drawBars = function(){ for(var i = 0; i < data.length; i++){ fill(255,0,0); rect(5,400,20,(-data[i])*multiplier); translate(width/data.length,0); } }; drawBars();