VI8

question 3: Plot only the top 5 QBs by rank and color the marks by rank.

B. choose a single-hue colormap

Explanation:

The multiple hue varies in such a way that with increase in rank the intensity of color also increases.

There is no particular reason for choosing red. I have choosen it simply because I like it.

<!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;
}
.tooltip {
  position: absolute;
  width: 200px;
  height: 28px;
  pointer-events: none;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
var x = d3.scale.linear()
    .range([0, width]);
var y = d3.scale.linear()
    .range([height, 0]);
var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom"<!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;
}
.tooltip {
  position: absolute;
  width: 200px;
  height: 28px;
  pointer-events: none;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
var x = d3.scale.linear()
    .range([0, width]);
var y = d3.scale.linear()
    .range([height, 0]);
var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");
var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");
var cValue = function(d) { 
	if(d['Conf'] ==  'Pac-12' ) {
		return 'Pac-12';
	} else if(d['Conf'] == 'MWC'){
		return 'MWC';
	} else if(d['Conf'] == 'MAC'){
		return 'MAC';
	}
	else if(d['Conf'] == 'SEC'){
		return 'SEC';
	}
	else if(d['Conf'] == 'Big 12'){
		return 'Big 12';
	}
	
}, color = function(val) {
	if(val == 'Pac-12') {
		return 	'#fee5d9';
	} else if (val == 'MWC') {
		return '#fcae91';
	} else if (val == 'MAC') {
		return '#fb6a4a';
	}
	else if (val == 'SEC') {
		return '#de2d26';
	}
	else if (val == 'Big 12') {
		return '#a50f15';
	}
}
var svg = d3.select("body").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 tooltip = d3.select("body").append("div")
    .attr("class", "tooltip")
    .style("opacity", 0);
d3.csv("stats.csv", function(error, data) {
  if (error) throw error;
  data.forEach(function(d) {
  if(d['Conf'] ==  'Pac-12' || d['Conf'] == 'MWC' || d['Conf'] == 'MAC' || d['Conf'] == 'SEC' || d['Conf'] ==  'Big 12') {
    d.PassingTD = +d.PassingTD;
    d.RushingTD = +d.RushingTD;
	}
  });
   x.domain(d3.extent(data, function(d) { return d.PassingTD; })).nice();
  y.domain(d3.extent(data, function(d) { return d.RushingTD; })).nice();
  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .append("text")
      .attr("class", "label")
      .attr("x", width)
      .attr("y", -6)
      .style("text-anchor", "end")
      .text("PassingTD");
  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("class", "label")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("RushingTD")
  svg.selectAll(".dot")
      .data(data)
    .enter().append("circle")
      .attr("class", "dot")
      .attr("r", 5)
      .attr("cx", function(d) { if(d['Conf'] ==  'Pac-12' || d['Conf'] == 'MWC' || d['Conf'] == 'MAC' || d['Conf'] == 'SEC' || d['Conf'] ==  'Big 12') return x(d.PassingTD); })
      .attr("cy", function(d) { if(d['Conf'] ==  'Pac-12' || d['Conf'] == 'MWC' || d['Conf'] == 'MAC' || d['Conf'] == 'SEC' || d['Conf'] ==  'Big 12') return y(d.RushingTD); })
      .style("fill", function(d) { return color(cValue(d));}) 
      .on("mouseover", function(d) {
          tooltip.transition()
               .duration(200)
               .style("opacity", .9);
          tooltip.html(d["Player"] + "<br/> " + d.School + "<br/>"+ d.Conf)
	   
               .style("left", (d3.event.pageX + 5) + "px")
               .style("top", (d3.event.pageY - 28) + "px");
      })
      .on("mouseout", function(d) {
          tooltip.transition()
               .duration(500)
               .style("opacity", 0);
      });
  var legend = svg.selectAll(".legend")
      .data(['Pac-12', 'MWC', 'MAC','SEC','Big 12'])
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(22," + i * 22 + ")"; });
 legend.append("rect")
      .attr("x", width - 18)
      .attr("width", 18)
      .attr("height", 18)
      .style("fill", color);
  legend.append("text")
      .attr("x", width - 24)
      .attr("y", 9)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d; });
}); 
</script>
</body>
</html>

https://d3js.org/d3.v3.min.js