traitement_donnee_steam

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<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
}

.axis path, .axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.dot {
  stroke: #000;
  stroke-width: .5px;
}

.tooltip {
	position: absolute;
	width: 200px;
	height: 28px;
	pointer-events: none;
}

.chart {
  display: inline-block;
  height: 300px;
  width: 400px;
  margin: 30px;
}
</style>
<body>
<div id="charts">
  <div id="chart-left" class="chart">
    <div class="title">Left chart</div>
  </div>
  <div id="chart-right" class="chart">
    <div class="title">Right chart</div>
  </div>
</div>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>

var margin = {top: 20, right: 20, bottom: 20, left: 30},
    width = 800 - margin.left - margin.right,
    height = 400 - margin.top - margin.bottom;

var color = d3.scaleOrdinal(d3.schemeCategory20);

var tooltip = d3.select("body").append("div")
					.attr("class", "tooltip")
					.style("opacity", 0);

function scatterplot(el, data, w, h, var_x, var_y, var_r, var_color) {

var x = d3.scaleLinear()
    .range([0, w]);

var y = d3.scaleLinear()
      .range([h, 0]);

var r = d3.scaleSqrt()
      .range([2,10]);

var xAxis = d3.axisBottom()
      .scale(x);

var yAxis = d3.axisLeft()
      .scale(y);

x.domain(d3.extent(data, function(d){
		return d[var_x];
	})).nice();

y.domain(d3.extent(data, function(d){
		return d[var_y];
	})).nice();

r.domain(d3.extent(data, function(d){
		return d[var_r];
	})).nice();

var svg = el.append("svg")
    .attr("width", w + margin.left + margin.right)
    .attr("height", h + margin.bottom + margin.top)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
  
  svg.append('g')
    .attr('transform', 'translate(0,' + h + ')')
    .attr('class', 'x axis')
    .call(xAxis);
  
  svg.append('g')
    .attr('transform', 'translate(0,0)')
    .attr('class', 'y axis')
    .call(yAxis);

svg.append('text')
		.attr('x', 10)
		.attr('y', 10)
		.attr('class', 'label')
		.text('Sepal Width');

svg.append('text')
		.attr('x', width)
		.attr('y', height - 10)
		.attr('text-anchor', 'end')
		.attr('class', 'label')
		.text('Sepal Length');

svg.selectAll(".dot")
    .data(data)
  .enter().append("circle")
    .attr("class", "dot")
    .attr("r", function(d) { return r(d[var_r]); })
    .attr("cx", function(d) { return x(d[var_x]); })
    .attr("cy", function(d) { return y(d[var_y]); })
    .style("fill", function(d) { return color(d[var_color]); })
    .on("mouseover", function(d){
			// highlight on
    	d3.selectAll(".dot").filter(function(e) {
        return e === d;
      })
      .style("stroke-width", 10)
		 })
		.on("mouseout", function(d){
    	d3.selectAll(".dot").filter(function(e) {
        return e === d;
      })
      .style("stroke-width", .5)
		})
		.on("click", function(d){
			// selection on/off
		});
  
 }
  
d3.csv('iris.csv', function(error, data){
	data.forEach(function(d){
    d.sepal_length = +d.sepal_length;
    d.sepal_width  = +d.sepal_width;
    d.petal_length = +d.petal_length;
    d.petal_width  = +d.petal_width;
	});

scatterplot(d3.select("#chart-left"), data, width/2, height/2, "sepal_length", "sepal_width", "petal_length", "species")

scatterplot(d3.select("#chart-right"), data, width/2, height/2, "petal_length", "petal_width", "sepal_length", "species")

});
  
</script>

Modified http://d3js.org/d3.v4.min.js to a secure url

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