${data.title[0]}${labels[j] && ` (${labels[j]})`} ${data.title[1]}${labels[i] && ` (${labels[i]})`}

28:null 29:["$","title",null,{"children":"GeoVis Assignment 5 | tylerwatters | Observable"}] 2e:T44c,legend = () => { const k = 24; const arrow = DOM.uid(); return svg` ${d3.cross(d3.range(n), d3.range(n)).map(([i, j]) => svg` ${data.title[0]}${labels[j] && ` (${labels[j]})`} ${data.title[1]}${labels[i] && ` (${labels[i]})`} `)} ${data.title[0]} ${data.title[1]} `; }2f:[{"id":"4b148a4d1d4887e51e109d884dc71906411e55cb3f925f93fa3c1aad0f68aa6085d476cbcb4572533181016d2c46ed669862b96498f860507e0441a4136d8506","href":"https://static.observableusercontent.com/files/4b148a4d1d4887e51e109d884dc71906411e55cb3f925f93fa3c1aad0f68aa6085d476cbcb4572533181016d2c46ed669862b96498f860507e0441a4136d8506","name":"NJpopDenNumSites.csv","type":"text/csv","lastModified":1680625991890.317,"size":4878},{"id":"f56755e5b34ef482d0c13e806d668e81028f848ad458f89e231db2ea230a6000daf392b6cc6fcddad3c530efb8a47bb957651bc5d7647aa24c90776e59d1c3e9","href":"https://static.observableusercontent.com/files/f56755e5b34ef482d0c13e806d668e81028f848ad458f89e231db2ea230a6000daf392b6cc6fcddad3c530efb8a47bb957651bc5d7647aa24c90776e59d1c3e9","name":"GeoVisAssignment5CS.pdf","type":"application/pdf","lastModified":1680646878225.028,"size":106698},{"id":"fc5b3234b8f5eaa8920a41a09b742978e3f96b73a3c8dbbd368b038e28ec7f5ad1883640e9cb8cc60aa3831ed9f15d202d4b757857c796f05ac46cb6368ad05e","href":"https://static.observableusercontent.com/files/fc5b3234b8f5eaa8920a41a09b742978e3f96b73a3c8dbbd368b038e28ec7f5ad1883640e9cb8cc60aa3831ed9f15d202d4b757857c796f05ac46cb6368ad05e","name":"NJCountyBorders.json","type":"application/json","lastModified":1680626285252.437,"size":1131358}] 2c:{"id":"55b864ce041a5874","slug":null,"title":"GeoVis Assignment 5","thumbnail":"eb076a07a2218aaf00305b0db033b7c379e1d75193dcdd927d424e241aa44d22","access_level":"public","create_time":"$D2023-04-04T16:08:58.805Z","update_time":"$D2023-05-03T01:08:40.528Z","view_time":null,"first_public_time":"$D2023-04-04T16:08:58.805Z","fork":{"id":"65c7f6ce9b65d583","slug":"bivariate-choropleth-mapping","title":"Bivariate Choropleth Mapping","owner":{"id":"22130e106df70095","login":"geoviz","name":"Geographic Visualization (GEOG 3540) - University of Iowa"}},"stars":0,"starred":false,"owner":{"type":"team","id":"56e5829ce3572510","login":"tylerwatters","name":"tylerwatters","avatar_url":"https://avatars-next.observableusercontent.com/8cb5ca5ae1e64daa8e733e8dda98ccf86d39a9ae10e4826764fee264568dd186","tier":"starter_2024"},"version":583,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"27e8f0b17fdc3451","login":"tylerwatters","name":"tylerwatters","avatar_url":"https://avatars-next.observableusercontent.com/8cb5ca5ae1e64daa8e733e8dda98ccf86d39a9ae10e4826764fee264568dd186","tier":null}],"members":[{"type":"individual","id":"27e8f0b17fdc3451","login":"tylerwatters","name":"tylerwatters","avatar_url":"https://avatars-next.observableusercontent.com/8cb5ca5ae1e64daa8e733e8dda98ccf86d39a9ae10e4826764fee264568dd186","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"GeoVis Assignment 5","cells":[{"id":0,"value":"md`# GeoVis Assignment 5\n\nPopulation Density of New Jersey Counties and Number of Contaminated Sites`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":194,"value":"viewof colors = {\n const form = html`

color scheme`;\n form.i.selectedIndex = 1;\n form.oninput = () => form.value = schemes[form.i.selectedIndex].colors;\n form.oninput();\n return form;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":14,"value":"chart = {\n const svg = d3.create(\"svg\")\n .attr(\"viewBox\", [0, 0, width, height]);\n\n svg.append(legend)\n .attr(\"transform\", \"translate(670,200)\");\n\n svg.append(\"g\")\n .selectAll(\"path\")\n .data(topojson.feature(polygons, polygons.objects.NJCounties).features)\n .join(\"path\")\n .attr(\"fill\", d => color(data.get(d.properties[idAttribute])))\n .attr(\"stroke\", \"black\")\n .attr(\"d\", path)\n .append(\"title\")\n .text(d => `${d.properties[idAttribute]}, ${format(data.get(d.properties[idAttribute]))}`);\n\n return svg.node();\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":359,"value":"// http://www.joshuastevens.net/cartography/make-a-bivariate-choropleth-map/\nschemes = [\n {\n name: \"RdBu\", \n colors: [\n \"#e8e8e8\", \"#e4acac\", \"#c85a5a\",\n \"#b0d5df\", \"#ad9ea5\", \"#985356\",\n \"#64acbe\", \"#627f8c\", \"#574249\"\n ]\n },\n {\n name: \"BuPu\", \n colors: [\n \"#e8e8e8\", \"#ace4e4\", \"#5ac8c8\",\n \"#dfb0d6\", \"#a5add3\", \"#5698b9\", \n \"#be64ac\", \"#8c62aa\", \"#3b4994\"\n ]\n },\n {\n name: \"GnBu\", \n colors: [\n \"#e8e8e8\", \"#b5c0da\", \"#6c83b5\",\n \"#b8d6be\", \"#90b2b3\", \"#567994\",\n \"#73ae80\", \"#5a9178\", \"#2a5a5b\"\n ]\n },\n {\n name: \"PuOr\", \n colors: [\n \"#e8e8e8\", \"#e4d9ac\", \"#c8b35a\",\n \"#cbb8d7\", \"#c8ada0\", \"#af8e53\",\n \"#9972af\", \"#976b82\", \"#804d36\"\n ]\n },\n {\n name: \"Test\", \n colors: [\n '#dfc27d','#bf812d','#8c510a',\n '#f6e8c3','#f5f5f5','#c7eae5',\n '#01665e','#35978f','#80cdc1'\n ]\n }\n]","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":216,"value":"labels = [\"low\", \"med\", \"high\"]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":207,"value":"n = Math.floor(Math.sqrt(colors.length))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":209,"value":"x = d3.scaleQuantile(Array.from(data.values(), d => d[0]), d3.range(n))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":204,"value":"y = d3.scaleQuantile(Array.from(data.values(), d => d[1]), d3.range(n))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":486,"value":"path = d3.geoPath().projection(projection)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":462,"value":"//Rotate the map sets the longitude of origin for our UTM projection.\nprojection = d3.geoTransverseMercator().rotate([87,0]).fitExtent([[10, 10], [width, height]], polygon_features);","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":430,"value":"polygon_features = topojson.feature(polygons, polygons.objects.NJCounties)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":467,"value":"data = Object.assign(new Map(d3.csvParse(await FileAttachment(\"NJpopDenNumSites.csv\").text(), ({COUNTY, SQ_MILES, POP2010, NUMSITES}) => [COUNTY, [POP2010/SQ_MILES, NUMSITES]])), {title: [\"Pop Density\", \"Contaminated Sites\"]})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":483,"value":"idAttribute = \"COUNTY\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":8,"value":"polygons = FileAttachment(\"NJCountyBorders.json\").json()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":427,"value":"height = 610","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":424,"value":"width = 875","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":480,"value":"$2e","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":477,"value":"color = {\n return value => {\n if (!value) return \"#ccc\";\n let [a, b] = value;\n return colors[y(b) + x(a) * n];\n };\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":513,"value":"formatNum = d3.format(\".1f\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":474,"value":"format = (value) => {\n if (!value) return \"N/A\";\n let [a, b] = value;\n return `${a} ${data.title[0]}${labels[x(a)] && ` (${labels[x(a)]})`}\n${formatNum(b)} ${data.title[1]}${labels[y(b)] && ` (${labels[y(b)]})`}`;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":6,"value":"topojson = require(\"topojson-client@3\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":3,"value":"d3 = require(\"d3@5\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"}],"files":"$W2f","stdlib":"1","titling":"auto"}} 2d:"$2c:body"