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xxxxxxxxxx<head> <meta charset="utf-8"> <script src="https://d3js.org/d3.v5.min.js"></script> <style> body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } .dot { stroke: rgba(70, 131, 180, 0.3); stroke-width: 2px; fill: none; } .female { stroke: rgba(180, 70, 162, 0.3); } .label { font: 10px sans-serif; color: black; } </style></head><body> <script> // set the dimensions and margins of the graph var margin = { top: 20, right: 20, bottom: 30, left: 50 }, cWidth = 400, cHeight = 400, width = cWidth + margin.left + margin.right, height = cHeight + margin.top + margin.bottom; // set the ranges var x = d3.scaleLinear().range([0, cWidth]); var y = d3.scaleLinear().range([cHeight, 0]); // append the svg obgect to the body of the page // appends a 'group' element to 'svg' // moves the 'group' element to the top left margin var svg = d3.select("body").append("svg") .attr("width", width) .attr("height", height) .append("g") .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); // Get the data const file = d3.csv('https://raw.githubusercontent.com/alex-rind/viztutorial/master/diabetes-small.csv'); file.then((data) => { //console.log(data); // values not be automatically converted to numbers --> coerce by "+" const maxX = d3.max(data, (d) => +d.HbA1c); const maxY = d3.max(data, (d) => +d.BMI);// const maxX = d3.max(data, function (d) { console.log(d); return 1; });// console.log(maxX); x.domain([0, maxX]); y.domain([0, maxY]); // Add the scatterplot svg.selectAll(".dot") .data(data) .enter().append("circle") .classed("dot", true) .attr("r", 5) .attr("cx", (d) => x(d.HbA1c)) .attr("cy", (d) => y(d.BMI)); // Add the X Axis svg.append("g") .attr("transform", "translate(0," + cHeight + ")") .call(d3.axisBottom(x)); svg.append("text") .attr("class", "label") .attr("x", cWidth) .attr("y", cHeight - 5) .style("text-anchor", "end") .text("HbA1c"); // Add the Y Axis svg.append("g") .call(d3.axisLeft(y)); svg.append("text") .attr("class", "label") .attr("transform", "rotate(-90)") .attr("y", 10) .attr("x", 0) .style("text-anchor", "end") .text("BMI"); }); </script></body> https://d3js.org/d3.v5.min.js