Scatter Transition

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>

<body>
  <p>Click on this text to update the chart with new data values as many times as you like!</p>
  <script>
    //Width and height
			var w = 700;
			var h = 400;
			var padding = 30;
			
			//Dynamic, random dataset
			var dataset = [];											
			var numDataPoints = 50;										
			var maxRange = Math.random() * 1000;						
			for (var i = 0; i < numDataPoints; i++) {					
				var newNumber1 = Math.floor(Math.random() * maxRange);	
				var newNumber2 = Math.floor(Math.random() * maxRange); 
				dataset.push([newNumber1, newNumber2]);	
			}
    
			//Create scale functions
			var xScale = d3.scaleLinear()
								 .domain([0, d3.max(dataset, function(d) { return d[0]; })])
								 .range([padding, w - padding * 2]);
			var yScale = d3.scaleLinear()
								 .domain([0, d3.max(dataset, function(d) { return d[1]; })])
								 .range([h - padding, padding]);
			
    	//Define X axis
			var xAxis = d3.axisBottom()
							  .scale(xScale)
							  .ticks(5);
			
    	//Define Y axis
			var yAxis = d3.axisLeft()
							  .scale(yScale)
							  .ticks(5);
			
    	//Create SVG element
			var svg = d3.select("body")
						.append("svg")
						.attr("width", w)
						.attr("height", h);
			
    	//Create circles
			svg.selectAll("circle")
			   .data(dataset)
			   .enter()
			   .append("circle")
			   .attr("cx", function(d) {
			   		return xScale(d[0]);
			   })
			   .attr("cy", function(d) {
			   		return yScale(d[1]);
			   })
			   .attr("r", 2);
			
			//Create X axis
			svg.append("g")
				.attr("class", "axis")
				.attr("transform", "translate(0," + (h - padding) + ")")
				.call(xAxis);
			
			//Create Y axis
			svg.append("g")
				.attr("class", "axis")
				.attr("transform", "translate(" + padding + ",0)")
				.call(yAxis);
			
    	//On click, update with new data			
			d3.select("p")
				.on("click", function() {
					
					var numValues = dataset.length;						 	
					var maxRange = Math.random() * 1000;						
					dataset = [];  						 				 		
					for (var i = 0; i < numValues; i++) {				 	
						var newNumber1 = Math.floor(Math.random() * maxRange);	
						var newNumber2 = Math.floor(Math.random() * maxRange);	
						dataset.push([newNumber1, newNumber2]);				
					}
					
					//Update scale domains
					xScale.domain([0, d3.max(dataset, function(d) { return d[0]; })]);
					yScale.domain([0, d3.max(dataset, function(d) { return d[1]; })]);
					//Update all circles
					svg.selectAll("circle")
					   .data(dataset)
					   .transition()
   					   .duration(1000)
					   .attr("cx", function(d) {
					   		return xScale(d[0]);
					   })
					   .attr("cy", function(d) {
					   		return yScale(d[1]);
					   });
				});

</script>
</body>

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