Updated coerced data

src/index.md

@@ -1,7 +1,8 @@
 ```js
 const parseTime = d3.timeParse("%b %d, %Y");
 const formatYear = d3.utcFormat("%Y");
-const coerceGameData = (d,i) => ({date: parseTime(d.date), year: parseInt(formatYear(parseTime(d.date))), spread: Number(d.spread)});
+const formatDate = d3.utcFormat("%b %d, %Y");
+const coerceGameData = (d,i) => ({date: parseTime(d.date), year: parseInt(formatYear(parseTime(d.date))), spread: Number(d.spread), fav: d.fav, und: d.und, sF: d.sF, sU: d.sU});
 const oddsfile = FileAttachment("./data/odds_data.json").json().then((D) => D.map(coerceGameData));
 ```
 ```js
@@ -14,66 +15,120 @@ display(oddsByYear);
 
 ```js
 function oddsPlot(data, {width} = {}) {
-	 // Declare the chart dimensions and margins.
-  const height = 500;
   const marginTop = 20;
-  const marginRight = 30;
+  const marginRight = 20;
-  const marginBottom = 30;
+  const marginBottom = 20;
-  const marginLeft = 40;
+  const marginLeft = 20;
+  const radius = 3;
+  const padding = 1.5;
+  const height =
+    longestString(oddsByYear)[1].length * (radius * 2 + padding) +
+    marginBottom +
+    marginTop +
+    50;
 
-  // Declare the x (horizontal position) scale.
+  //d3.max(oddsfile, (d) => (d.spread));
-  const x = d3.scaleTime([1952,2025], [marginLeft, width-marginRight]);
+  const color = d3
+    .scaleLinear()
+    .domain([0, d3.max(oddsfile, (d) => d.spread)])
+    .range([0, 1]);
 
-  // Declare the y (vertical position) scale.
+  const x = d3
-  const y = d3.scaleLinear([0, 600], [height - marginBottom, marginTop]);
+    .scaleLinear()
+    .domain(d3.extent(oddsfile, (d) => d.year))
+    .range([marginLeft, width - marginRight]);
 
-// Declare the line generator.
+  const svg = d3
-  const line = d3.line()
+    .create("svg")
-      .x(d => x(d.year))
-      .y(d => y(d.count()))
-      // .y(d => y(total(d, "year", d.year)));
-
-  // Create the SVG container.
-  const svg = d3.create("svg")
     .attr("width", width)
     .attr("height", height)
     .attr("viewBox", [0, 0, width, height])
-      .attr("style", "max-width: 100%; height: auto; height: intrinsic;");
+    .attr("style", "max-width: 100%; height: auto;");
 
-  // Add the x-axis.
+  svg
-  svg.append("g")
+    .append("g")
     .attr("transform", `translate(0,${height - marginBottom})`)
-      .call(d3.axisBottom(x).ticks(width / 80).tickSizeOuter(0));
+    .call(d3.axisBottom(x).tickSizeOuter(0));
 
-  // Add the y-axis, remove the domain line, add grid lines and a label.
+  svg
-  svg.append("g")
+    .append("g")
-      .attr("transform", `translate(${marginLeft},0)`)
+    .selectAll()
-      .call(d3.axisLeft(y).ticks(height / 40))
+    .data(
-      .call(g => g.select(".domain").remove())
+      dodge(oddsfile, { radius: radius * 2 + padding, x: (d) => x(d.year) })
-      .call(g => g.selectAll(".tick line").clone()
+    )
-          .attr("x2", width - marginLeft - marginRight)
+    .join("circle")
-          .attr("stroke-opacity", 0.1))
+    .attr("fill", (d) => d3.interpolateRainbow(color(d.data.spread)))
-
+    .attr("cx", (d) => d.x)
-  // Append a path for the line.
+    .attr("cy", (d) => height - marginBottom - radius - padding - d.y)
-  svg.append("path")
+    .attr("r", radius)
-      .attr("fill", "none")
+    .append("title")
-      .attr("stroke", "steelblue")
+    .text((d) => `${formatDate(d.data.date)}\n${d.data.fav}(${d.data.sF}) vs. ${d.data.und}(${d.data.sU})`);
-      .attr("stroke-width", 1.5)
-      .attr("d", line(data));
 
   return svg.node();
 }
 ```
 
 ```js
+function dodge(data, { radius = 1, x = (d) => d } = {}) {
+  const radius2 = radius ** 2;
+  const circles = data
+    .map((d, i, data) => ({ x: +x(d, i, data), data: d }))
+    .sort((a, b) => a.x - b.x);
+  const epsilon = 1e-3;
+  let head = null,
+    tail = null;
+
+  // Returns true if circle ⟨x,y⟩ intersects with any circle in the queue.
+  function intersects(x, y) {
+    let a = head;
+    while (a) {
+      if (radius2 - epsilon > (a.x - x) ** 2 + (a.y - y) ** 2) {
+        return true;
+      }
+      a = a.next;
+    }
+    return false;
+  }
+
+  // Place each circle sequentially.
+  for (const b of circles) {
+    // Remove circles from the queue that can’t intersect the new circle b.
+    while (head && head.x < b.x - radius2) head = head.next;
+    // Choose the minimum non-intersecting tangent.
+    if (intersects(b.x, (b.y = 0))) {
+      let a = head;
+      b.y = Infinity;
+      do {
+        let y = a.y + Math.sqrt(radius2 - (a.x - b.x) ** 2);
+        if (y < b.y && !intersects(b.x, y)) b.y = y;
+        a = a.next;
+      } while (a);
+    }
+
+    // Add b to the queue.
+    b.next = null;
+    if (head === null) head = tail = b;
+    else tail = tail.next = b;
+  }
+
+  return circles;
+}
+
 function total(data, label, find)
 {
   return data.reduce(function(count, entry) { 
     return count + (entry[label] === find ? 1 : 0);
   }, 0);
 }
+
+function longestString(map) {
+  return Array.from(map).sort(function (a, b) {
+    return b[1].length - a[1].length;
+  })[0];
+}
 ```
 
+
 <div class="grid grid-cols-1">
   <div class="card">${resize((width) => oddsPlot(oddsByYear, {width}))}</div>
 </div>