form", d => `translate( ${xScale(d.day)} , ${yScale(d.median)} )`)
            .each(function(d,i) {
              d3.select(this)
                .append("rect")
                  .attr("width", 20)
                  .attr("height", yScale(d.q1) - yScale(d.q3));
            });
      }
    </script>
  </body>
</html>
