Stacked bar chart v4_Mignon

forked from romsson's block: Stacked bar chart v4

<!DOCTYPE html>
<style>

.axis .domain {
  display: none;
}
  
  .button1{
    display:inline-block;
  }
</style>
<body>
    <div class="button1">
    <button class="button" id="transition1">Transition 1</button>
  </div>
  <div class="button1">
    <button class="button" id="transition2">Transition 2</button>
  </div>
    <div class="button1">
    <button class="button" id="transition3">Transition 3</button>
  </div>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>

// Source: https://bl.ocks.org/mbostock/3886208
var n = 10, // number of samples
    m = 5; // number of series

var data = d3.range(m).map(function() { 
  return d3.range(n).map(Math.random); 
});

var margin = {top: 20, right: 30, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var y = d3.scaleLinear()
    .domain([0, n])
    .rangeRound([height, 0])
		.nice();

var x = d3.scaleBand()
    .rangeRound([0, width])
    .paddingInner(0.1)
    .align(0.1)
    .domain(d3.range(m));
  
var x0 = d3.scaleBand()
    .domain(d3.range(m))
    .range([0, width], 0);
  
var x1 = d3.scaleBand()
    .domain(d3.range(n))
    .range([0, x0.bandwidth()]);

var z = d3.scaleOrdinal()
    .range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);

var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

svg.append("g").selectAll("g")
    	.data(d3.stack().keys(d3.range(n))(data))
  .enter().append("g")
		.attr("class","transition")
    .style("fill", function(d) { return z(d.key); })	
    .selectAll("rect")
  .data(function(d) { return d; })
    .enter().append("rect")
			.attr("class","transitionr")
      .attr("x", function(d, i) { return x(i); })
      .attr("y", function(d) { return y(d[1]); })
      .attr("height", function(d) { return y(d[0]) - y(d[1]); })
      .attr("width", x.bandwidth());

https://d3js.org/d3.v4.min.js