var json = JSON.parse( myjson ); var width = 950, height = 950; var colors = d3.scale.category20(); var svg = d3.select("body").append("svg") .attr("width", width) .attr("height", height); var force = d3.layout.force() .charge(-300) .linkDistance(40) .size([width, height]); var link = svg.selectAll(".link") .data(json.links) .enter().append("line") .attr("class", "link"); var node = svg.selectAll(".node") .data(json.nodes) .enter().append("g") .attr("class", "node") .call(force.drag); node.append("circle") .attr("r", function(d) { return d.size; } ) .attr("fill", function(d) { return colors(d.group); } ); node.append("text") .attr("dx", 12) .attr("dy", ".35em") .text(function(d) { return d.name }); force.on("tick", function() { link.attr("x1", function(d) { return d.source.x; }) .attr("y1", function(d) { return d.source.y; }) .attr("x2", function(d) { return d.target.x; }) .attr("y2", function(d) { return d.target.y; }); node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }); }); force.nodes(json.nodes) .links(json.links) .start();

The following graph was created using the R package popgraph. Any questions or comments can be sent to rjdyer@vcu.edu