2e:null 2f:["$","title",null,{"children":"Assignment 1: Percent Population 5 and Younger in Alaska | nschoen28 | Observable"}] 34:T5a4,function showScaleGrouping(data, scales) { const margins = { left: 130 }; const x = d3 .scaleLinear() .domain(d3.extent(data)) .range([margins.left, width - 5]); const r = 3; const rectHeight = 10; const chart = svg` `; return chart; }35:[{"id":"7f63cd60bd780fb581d9a0869fc0fa88e96e3b42d72a56a1b4dd371f15cfb3cd74b48884b9b96cade4aec2653338f9a9a264ff95ed638e2327f10a3350c6ce82","href":"https://static.observableusercontent.com/files/7f63cd60bd780fb581d9a0869fc0fa88e96e3b42d72a56a1b4dd371f15cfb3cd74b48884b9b96cade4aec2653338f9a9a264ff95ed638e2327f10a3350c6ce82","name":"Alaska.json","type":"application/json","lastModified":1582649708557.969,"size":25543},{"id":"cebcca49f80541efc6820907fd1b3096d5c95574ddbbdac4d57fe6bc342d89026ccd851d16cc186eee115565d800dfe8cb3589069d3d4dd16fdcbcc75db6dd3b","href":"https://static.observableusercontent.com/files/cebcca49f80541efc6820907fd1b3096d5c95574ddbbdac4d57fe6bc342d89026ccd851d16cc186eee115565d800dfe8cb3589069d3d4dd16fdcbcc75db6dd3b","name":"Alaska@1.csv","type":"text/csv","lastModified":1582730149225.932,"size":8290}] 32:{"id":"f04ba8fb9b156673","slug":"assignment-1-percent-population-5-and-younger-in-alaska","title":"Assignment 1: Percent Population 5 and Younger in 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1: Percent Population 5 and Younger in Alaska","cells":[{"id":0,"value":"md`# Assignment 1: Percent Population 5 and Younger in Alaska`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":4,"value":"d3 = require(\"d3@5\")","pinned":true,"hidden":false,"mode":"ojs","author":"$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":"$undefined"},{"id":10,"value":"Alaska = FileAttachment(\"Alaska.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"county_features = topojson.feature(Alaska, Alaska.objects.Alaska)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"csv_data = d3.csvParse(await FileAttachment(\"Alaska@1.csv\").text(),({FIPS, AGE_UNDER5, POP2010}) => [FIPS, [+AGE_UNDER5, +AGE_UNDER5/+POP2010]])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":25,"value":"childpct = Array.from(csv_data.values(), d => d[1][1])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":28,"value":"data = Object.assign(new Map(csv_data), {title: [\"Percent Population of Alaska: 5 and Younger\"]})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":174,"value":"md`# Linear Scale (Unclassed)`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":242,"value":"linear = d3.scaleLinear()\n .domain([d3.min(childpct),d3.max(childpct)])\n .range([\"white\", \"green\"])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":199,"value":"chart(numericSort(childpct), linear)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":267,"value":"md`# Quantile Classification`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":272,"value":"quantile = d3.scaleQuantile()\n .domain(childpct)\n .range([\"white\", \"#99d594\", \"green\"])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":274,"value":"chart(numericSort(childpct), quantile)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":323,"value":"md`# Jenks Natural Breaks Classification`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":319,"value":"jenks = d3\n .scaleThreshold()\n .domain([0.06444582814445828, 0.09325355890241387, 0.12106180453143853])\n .range([\"white\", \"#99d594\", \"green\"])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":330,"value":"chart(numericSort(childpct), jenks)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":280,"value":"md`# Equal Interval Classification (Quantize)`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":276,"value":"quantize = d3.scaleQuantize()\n .domain([d3.min(childpct),d3.max(childpct)])\n .range([\"white\", \"#99d594\", \"green\"])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":282,"value":"chart(numericSort(childpct), quantize)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":295,"value":"md`# Threshold`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":289,"value":"threshold = d3.scaleThreshold()\n .domain([0.06444582814445828, 0.09325355890241387, 0.12106180453143853])\n .range([\"white\", \"#99d594\", \"green\"])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":297,"value":"chart(numericSort(childpct), threshold)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":355,"value":"showScaleGrouping(childpct, {\n scaleQuantile: quantile,\n scaleThreshold: threshold,\n scaleJenks: jenks,\n scaleQuantize: quantize,\n scaleQuantizeNice: quantize.copy().nice()\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":129,"value":"md`# Annex`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":261,"value":"function numericSort(x) {\n return (\n x\n // ensure the array is not changed in-place\n .slice()\n // comparator function that treats input as numeric\n .sort((a, b) => a - b)\n );\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":201,"value":"function chart(data, scale) {\n const w = 30,\n cols = Math.floor(Math.min(600, width) / w),\n lines = Math.ceil(100 / cols);\n const chart = d3\n .create(\"svg\")\n .attr(\"width\", cols * w)\n .attr(\"height\", lines * w);\n\n chart\n .append(\"g\")\n .attr(\"transform\", \"translate(2,2)\")\n .attr(\"style\", \"stroke:black; fill:white;\")\n .selectAll(\"rect\")\n .data(data)\n .join(\"rect\")\n .attr(\"width\", w - 3)\n .attr(\"height\", w - 3)\n .attr(\"x\", (_, i) => w * (i % cols))\n .attr(\"y\", (_, i) => w * ((i / cols) | 0))\n .style(\"fill\", d => (scale ? scale(d) : \"#ddd\"));\n return chart.node();\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":313,"value":"simple = require(\"simple-statistics@7.0.7/dist/simple-statistics.min.js\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":312,"value":"ckmeansThresholds = simple.ckmeans(childpct, 3).map(v => v.pop())","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":357,"value":"$34","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W35","stdlib":"1","titling":"auto"}} 33:"$32:body"