Gráficos de dispersión¶
Iris dataset¶
En este ejemplo hemos usado la escala de colores d3.schemeDark2, por lo que hemos de cargar el módulo d3-scale-chromatic con:
<script src="https://d3js.org/d3-scale-chromatic.v1.min.js"></script>
Input
<div id="scatterplot-graph-1"></div>
<script>
var margin = {top: 30, right: 50, bottom: 40, left: 40};
var width = 680 - margin.left - margin.right;
var height = 450 - margin.top - margin.bottom;
var svg = d3.select("#scatterplot-graph-1").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 + ")");
var xScale = d3.scaleLinear().range([0, width]);
var yScale = d3.scaleLinear().range([height, 0]);
var xAxis = d3.axisBottom().scale(xScale);
var yAxis = d3.axisLeft().scale(yScale);
var color = d3.scaleOrdinal(d3.schemeDark2);
var url = "https://gist.githubusercontent.com/Jverma/076377dd0125b1a508621441752735fc/raw/b3c1e1bdafd135d6cd01f5a4b53f1bd347dacd03/iris.csv";
d3.csv(url, function(error, data){
xScale.domain(d3.extent(data, function(d){
return d.SepalLength;
})).nice();
yScale.domain(d3.extent(data, function(d){
return d.SepalWidth;
})).nice();
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("transform", "translate(0,0)")
.call(yAxis);
var bubble = svg.selectAll(".bubble")
.data(data)
.enter().append("circle")
.attr("cx", function(d){ return xScale(d.SepalLength); })
.attr("cy", function(d){ return yScale(d.SepalWidth); })
.attr("r", "3px")
.style("fill", function(d){ return color(d.Name); });
});
</script>
Output