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

2d:null 2e:["$","title",null,{"children":"Untitled | Geographic Visualization (GEOG 3540) - University of Iowa | Observable"}] 33:T455,legendbivariate = () => { 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]} ${data.title[1]} ` };34:[{"id":"e987ca64eab583cf0d23532dc6c5b7b7064af664ba80a7d0723bac6c1ce440895fe66182d3f64f189dc82276ad2c93a7224c6af1db57ad702104f8ee65e9fa9e","href":"https://static.observableusercontent.com/files/e987ca64eab583cf0d23532dc6c5b7b7064af664ba80a7d0723bac6c1ce440895fe66182d3f64f189dc82276ad2c93a7224c6af1db57ad702104f8ee65e9fa9e","name":"countiesandcropiowa (1).json","type":"application/json","lastModified":1620234734619.338,"size":104041},{"id":"f5a2f6f769ed7150a244422d21cf26ed4180216f01de4e33849a3969f56e79a61f3f979aad1bbd989e48148c2d6227cf59330a23290a6079eda0c7b8628f5364","href":"https://static.observableusercontent.com/files/f5a2f6f769ed7150a244422d21cf26ed4180216f01de4e33849a3969f56e79a61f3f979aad1bbd989e48148c2d6227cf59330a23290a6079eda0c7b8628f5364","name":"iowacropcountjoinnull.csv","type":"text/csv","lastModified":1620234734619.338,"size":11670}] 31:{"id":"962f96a104369bdf","slug":"bivariatewithnull","title":"","thumbnail":"f379682d137b754ec35ebea3df3c2bf217414b0df4807e59d41b30d0685b0cde","access_level":"public","create_time":"$D2021-05-05T17:12:14.619Z","update_time":"$D2021-05-05T17:14:51.015Z","view_time":null,"first_public_time":"$D2021-05-05T17:15:08.444Z","has_unpublished_edits":null,"fork":{"id":"70d6c0c4ecb0f063","slug":"bivariate-map-3540","title":"","owner":{"id":"7d0eb6e9ea6d2fa0","login":"eschopen","name":""}},"stars":0,"starred":false,"owner":{"type":"team","id":"22130e106df70095","login":"geoviz","name":"Geographic Visualization (GEOG 3540) - University of Iowa","avatar_url":"https://avatars-next.observableusercontent.com/d69028c51a1cbcb1540188a2e16578dcc6abeea0c267ae7e3a59a69cf8245596","tier":"starter_2024"},"version":593,"publish_version":593,"role":null,"authored":false,"authors":[{"type":"individual","id":"60e9af384dfce94c","login":"caglarkoylu","name":"Caglar Koylu","avatar_url":"https://avatars-next.observableusercontent.com/94b0c40bf8a6b04057088ea171864451b3e3b27b7346d866d2a7be21d077be76","tier":null}],"members":[{"type":"individual","id":"60e9af384dfce94c","login":"caglarkoylu","name":"Caglar Koylu","avatar_url":"https://avatars-next.observableusercontent.com/94b0c40bf8a6b04057088ea171864451b3e3b27b7346d866d2a7be21d077be76","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":1,"collection":null,"type":"notebook","body":{"title":"","cells":[{"id":0,"value":"md`## Bivarite Map\nIowa Counties Crop Yields (Bushel per Acre) 2019 and 2020\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$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","output":"$undefined","database":"$undefined"},{"id":14,"value":"chart = {\n const svg = d3.create(\"svg\")\n .attr(\"viewBox\", [0, 0, width, height]);\n\n svg.append(legendbivariate)\n .attr(\"transform\", \"translate(60,150)\");\n \n svg.append(\"g\")\n .attr(\"transform\", \"translate(20,0)\")\n .append(() =>\n legend({\n color: nullcolor,\n title: \"No Data\",\n width: 50,\n tickFormat: \".1f\"\n })\n );\n\n svg.append(\"g\")\n .selectAll(\"path\")\n .data(topojson.feature(polygons, polygons.objects.countiesandcropiowa).features)\n .join(\"path\")\n .attr(\"fill\", d => color(data.get(d.properties[idAttribute])))\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":"$undefined","output":"$undefined","database":"$undefined"},{"id":359,"value":"// http://www.joshuastevens.net/cartography/make-a-bivariate-choropleth-map/\nschemes = [\n {\n name: \"RdBu\", \n colors: [\n \"#e8e8e8\", \"#e4acac\", \"#c85a5a\",\n \"#b0d5df\", \"#ad9ea5\", \"#985356\",\n \"#64acbe\", \"#627f8c\", \"#574249\"\n ]\n },\n {\n name: \"BuPu\", \n colors: [\n \"#e8e8e8\", \"#ace4e4\", \"#5ac8c8\",\n \"#dfb0d6\", \"#a5add3\", \"#5698b9\", \n \"#be64ac\", \"#8c62aa\", \"#3b4994\"\n ]\n },\n {\n name: \"GnBu\", \n colors: [\n \"#e8e8e8\", \"#b5c0da\", \"#6c83b5\",\n \"#b8d6be\", \"#90b2b3\", \"#567994\",\n \"#73ae80\", \"#5a9178\", \"#2a5a5b\"\n ]\n },\n {\n name: \"PuOr\", \n colors: [\n \"#e8e8e8\", \"#e4d9ac\", \"#c8b35a\",\n \"#cbb8d7\", \"#c8ada0\", \"#af8e53\",\n \"#9972af\", \"#976b82\", \"#804d36\"\n ]\n }\n]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":216,"value":"labels = [\"low\", \"\", \"high\"]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":207,"value":"n = Math.floor(Math.sqrt(colors.length))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":209,"value":"x = d3.scaleQuantile(Array.from(data.values(), d => d[0]), d3.range(n))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":204,"value":"y = d3.scaleQuantile(Array.from(data.values(), d => d[1]), d3.range(n))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":486,"value":"path = d3.geoPath().projection(projection)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":462,"value":"//Rotate the map sets the longitude of origin for our UTM projection.\n//projection = d3.geoTransverseMercator().rotate([87,0]).fitExtent([[10, 10], [width, height]], polygon_features);\nprojection = d3.geoTransverseMercator().rotate([94,0]).fitExtent([[40, 40], [width, height]], polygon_features)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":430,"value":"polygon_features = topojson.feature(polygons, polygons.objects.countiesandcropiowa)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":467,"value":"data = Object.assign(new Map(d3.csvParse(await FileAttachment(\"iowacropcountjoinnull.csv\").text(), ({NAME, cropdatano__Yield_2019, cropdatano__Yield_2020}) => [NAME, [+cropdatano__Yield_2019, cropdatano__Yield_2020]])), {title: [\"Yield 2019\", \" Yield 2020\"]})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":483,"value":"idAttribute = \"NAME\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":8,"value":"polygons = FileAttachment(\"countiesandcropiowa (1).json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":427,"value":"height = 400","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":424,"value":"width = 875","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":549,"value":"nullcolor = d3.scaleOrdinal()\n .domain([NaN])\n .range(d3.color(\"black\"))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":480,"value":"$33","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":477,"value":"color = {\n return value => {\n if (!value) return \"#ccc\";\n let [a, b] = value;\n return colors[y(b) + x(a) * n];\n };\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":513,"value":"formatNum = d3.format(\".1f\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":474,"value":"format = (value) => {\n if (!value) return \"N/A\";\n let [a, b] = value;\n return `${a} ${data.title[0]}${labels[x(a)] && ` (${labels[x(a)]})`}\n${formatNum(b)} ${data.title[1]}${labels[y(b)] && ` (${labels[y(b)]})`}`;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":589,"value":"import {legend} from \"@d3/color-legend\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"topojson = require(\"topojson-client@3\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":3,"value":"d3 = require(\"d3@5\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W34","stdlib":"1","titling":"auto"}} 32:"$31:body"