44:["$","title",null,{"children":"IB Waffle Chart | Haley Horton | Observable"}] 4c:T839,chart = { const svg = d3.create("svg") .style("cursor", "default") .attr("viewBox", [0, 0, width, height]); const g = svg.selectAll(".waffle") .data(waffles) .join("g") .attr("class", "waffle"); if (!whole) { const numPerRow = Math.floor(width / (waffleSize + padding.x)); g.attr("transform", (d, i) => { const r = Math.floor(i / numPerRow); const c = i - r * numPerRow; return `translate(${c * (waffleSize + padding.x)},${r * (waffleSize + padding.y)})` }); } const cellSize = scale.bandwidth(); const half = cellSize / 2; const cells = g.append("g") .selectAll(options.shape) .data(d => d) .join(options.shape) .attr("fill", d => d.index === -1 ? "#ddd" : color(d.index)); if (isRect) { cells.attr("x", d => scale(d.x)) .attr("y", d => whole ? 0 : scale(d.y)) .attr("rx", 3).attr("ry", 3) .attr("width", cellSize).attr("height", cellSize) } else { cells.attr("cx", d => scale(d.x) + half) .attr("cy", d => whole ? 0 : scale(d.y) + half) .attr("r", half); } if (whole) { cells.append("title").text(d => { const cd = chartData[d.index]; return `${cd.Level}\n${cd.hl_numbers} (${cd.ratio.toFixed(1)}%)`; }); cells.transition() .duration(d => d.y * 100) .ease(d3.easeBounce) .attr(isRect ? "y" : "cy", d => scale(d.y) + (isRect ? 0 : half)); svg.transition().delay(550) .on("end", () => drawLegend(svg, cells)); } else { g.append("text") .style("font-size", 20) .style("font-weight", "bold") .attr("dy", "1.5em") .attr("text-anchor", "middle") .attr("fill", (d, i) => color(i)) .attr("transform", `translate(${waffleSize / 2},0)`) .text((d, i) => `${chartData[i].ratio.toFixed(0)}%`); g.append("g") .attr("transform", `translate(0,${waffleSize + padding.y / 2.5})`) .call(g => g.append("text").text((d, i) => chartData[i].level)) .call(g => g.append("text").attr("dy", "1em").text((d, i) => chartData[i].hl_numbers)); } return svg.node(); }4d:[{"id":"9594b935c4f05ecc40b439372983960b2db3349582f6b9df71a94385db099ec6cebab4762825d980b87806e234d872b91862758f0cc691439294bb2cd3f30fdb","href":"https://static.observableusercontent.com/files/9594b935c4f05ecc40b439372983960b2db3349582f6b9df71a94385db099ec6cebab4762825d980b87806e234d872b91862758f0cc691439294bb2cd3f30fdb","name":"2026_ib","type":"text/csv","lastModified":1793982504127,"size":79}] 48:{"id":"de21ad8048937ba4","slug":"ib-waffle-chart","title":"IB Waffle Chart","thumbnail":"d1796e9c69f9f8f2bb5325116b3e75c12383d1b4e93110b05d0c0a3ee073d14f","access_level":"public","create_time":"$D2026-11-06T16:00:55.903Z","update_time":"$D2026-11-06T16:56:44.196Z","view_time":null,"first_public_time":"$D2026-11-06T16:47:14.150Z","has_unpublished_edits":null,"fork":{"id":"2cecde5741cc5888","slug":"waffle-chart","title":"Waffle Chart","owner":{"id":"4d412f762b1c1ef6","login":"analyzer2004","name":"Eric Lo"}},"stars":0,"starred":false,"owner":{"type":"team","id":"84620d6578bb22d7","login":"haley-horton","name":"Haley Horton","avatar_url":"https://avatars-next.observableusercontent.com/5bcab6a50ce920e1029ac34ca1f3d80aa608ee9f9c09daf7da67056f7ee49838","tier":"starter_2024","bio":"","followed_by_you":false,"follows_you":false},"version":359,"publish_version":359,"role":null,"authored":false,"authors":[{"type":"individual","id":"9b28a6f4672a0688","login":"haley-horton","name":"Haley Horton","avatar_url":"https://avatars-next.observableusercontent.com/5bcab6a50ce920e1029ac34ca1f3d80aa608ee9f9c09daf7da67056f7ee49838","tier":null,"bio":"","followed_by_you":false,"follows_you":false}],"members":[{"type":"team","id":"84620d6578bb22d7","login":"haley-horton","name":"Haley Horton","avatar_url":"https://avatars-next.observableusercontent.com/5bcab6a50ce920e1029ac34ca1f3d80aa608ee9f9c09daf7da67056f7ee49838","tier":"starter_2024","role":"editor"}],"comments":[],"custom_thumbnail":true,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"IB Waffle Chart","cells":[{"id":0,"value":"# IB Waffle Chart\n\nTaken from this: https://observablehq.com/@analyzer2004/waffle-chart; I changed the data type (from a decimal to a regular number) & color. Do I need to change more about the design?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":213,"value":"viewof options = form(html`

\n Style: \n Shape: \n`)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":64,"value":"$4c","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":278,"value":"drawLegend = (svg, cells) => {\n const legend = svg.selectAll(\".legend\")\n .data(chartData.map(d => d.Level))\n .join(\"g\")\n .attr(\"opacity\", 1)\n .attr(\"transform\", (d, i) => `translate(${waffleSize + 20},${i * 30})`)\n .on(\"mouseover\", highlight)\n .on(\"mouseout\", restore);\n\n legend.append(\"rect\")\n .attr(\"rx\", 3).attr(\"ry\", 3)\n .attr(\"width\", 30).attr(\"height\", 20)\n .attr(\"fill\", (d, i) => color(i));\n\n legend.append(\"text\")\n .attr(\"dx\", 40)\n .attr(\"alignment-baseline\", \"hanging\")\n .text((d, i) => `${d} (${chartData[i].ratio.toFixed(1)}%)`);\n\n function highlight(e, d, restore) {\n const i = legend.nodes().indexOf(e.currentTarget);\n cells.transition().duration(500)\n .attr(\"fill\", d => d.index === i ? color(d.index) : \"#ccc\");\n }\n\n function restore() {\n cells.transition().duration(500).attr(\"fill\", d => color(d.index))\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":113,"value":"toLevel = num => d3.format(\"$,.2f\")(num)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":56,"value":"color = d3.scaleOrdinal(d3.schemeDark2)\n .domain(sequence(chartData.length))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":73,"value":"scale = d3.scaleBand()\n .domain(sequence(10))\n .range([0, waffleSize])\n .padding(0.1)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":190,"value":"sequence = (length) => Array.apply(null, {length: length}).map((d, i) => i);","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"whole = options.style === \"whole\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":249,"value":"isRect = options.shape === \"rect\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":31,"value":"chartData = {\n const data = d3.csvParse(await FileAttachment(\"2026_ib\").text(), d3.autoType);\n const total = data.reduce((a, b) => a + Math.abs(b.hl_numbers), 0);\n return data.map(d => ({\n Level: d.Level,\n hl_numbers: d.hl_numbers,\n ratio: d.hl_numbers/ total * 100\n }));\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":20,"value":"waffles = {\n const array = [];\n if (whole) {\n const max = chartData.length;\n let index = 0, curr = 1,\n accu = Math.round(chartData[0].ratio), waffle = [];\n\n for (let y = 9; y >= 0; y--)\n for (let x = 0; x < 10; x ++) {\n if (curr > accu && (index +1) < max) {\n let r = Math.round(chartData[++index].ratio);\n while(r === 0 && (index + 1) < max) r = Math.round(chartData[++index].ratio);\n accu += r;\n }\n waffle.push({x, y, index});\n curr++;\n }\n array.push(waffle);\n }\n else {\n chartData.map((d, i) => {\n let curr = 0, waffle = [];\n for (let y = 9; y >= 0; y--)\n for(let x = 0; x < 10; x ++) {\n waffle.push(({x, y, index: curr < Math.round(d.ratio) ? i : -1}));\n curr++;\n }\n array.push(waffle);\n });\n }\n return array;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":58,"value":"width = 800","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":60,"value":"height = 400","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":70,"value":"padding = ({x: 10, y: 40})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":62,"value":"waffleSize = whole ? width < height ? width : height : 150;","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":215,"value":"import {form} from \"@mbostock/form-input\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"d3 = require(\"d3@6\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":271,"value":"md`🌐[ericlo.dev](https://ericlo.dev) 🐱[GitHub Repositories](https://github.com/analyzer2004?tab=repositories) 🐦[Twitter](https://twitter.com/analyzer2004)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W4d","stdlib":"1"}} 24:null