2d:null 2e:["$","title",null,{"children":"Scrapbook | Toph Tucker | Observable"}] 33:T5dd,// takes an array of Observable file attachments, like // attachmentGallery([FileAttachment("pic.png"), FileAttachment("pic 2.png")]) attachmentGallery = async attachments => { const pics = await Promise.all( attachments.map(attachment => attachment.url()) ); const node = html`

${pics.map( (pic, i) => html`

` )}

`; for (const el of node.querySelectorAll(".thumbnails img")) { el.addEventListener("click", function(e) { node.querySelector(".thumbnails img.active").classList.remove("active"); e.target.classList.add("active"); node .querySelector(".main img") .setAttribute("src", e.target.getAttribute("src")); }); } return node; }34:Te68,loremSrc = `Perchance, he for whom this bell tolls may be so ill, as that he knows not it tolls for him; and perchance I may think myself so much better than I am, as that they who are about me, and see my state, may have caused it to toll for me, and I know not that. The church is catholic, universal, so are all her actions; all that she does belongs to all. When she baptizes a child, that action concerns me; for that child is thereby connected to that body which is my head too, and ingrafted into that body whereof I am a member. And when she buries a man, that action concerns me: all mankind is of one author, and is one volume; when one man dies, one chapter is not torn out of the book, but translated into a better language; and every chapter must be so translated; God employs several translators; some pieces are translated by age, some by sickness, some by war, some by justice; but God's hand is in every translation, and his hand shall bind up all our scattered leaves again for that library where every book shall lie open to one another. As therefore the bell that rings to a sermon calls not upon the preacher only, but upon the congregation to come, so this bell calls us all; but how much more me, who am brought so near the door by this sickness. There was a contention as far as a suit (in which both piety and dignity, religion and estimation, were mingled), which of the religious orders should ring to prayers first in the morning; and it was determined, that they should ring first that rose earliest. If we understand aright the dignity of this bell that tolls for our evening prayer, we would be glad to make it ours by rising early, in that application, that it might be ours as well as his, whose indeed it is. The bell doth toll for him that thinks it doth; and though it intermit again, yet from that minute that this occasion wrought upon him, he is united to God. Who casts not up his eye to the sun when it rises? but who takes off his eye from a comet when that breaks out? Who bends not his ear to any bell which upon any occasion rings? but who can remove it from that bell which is passing a piece of himself out of this world? No man is an island, entire of itself; every man is a piece of the continent, a part of the main. If a clod be washed away by the sea, Europe is the less, as well as if a promontory were, as well as if a manor of thy friend's or of thine own were: any man's death diminishes me, because I am involved in mankind, and therefore never send to know for whom the bell tolls; it tolls for thee. Neither can we call this a begging of misery, or a borrowing of misery, as though we were not miserable enough of ourselves, but must fetch in more from the next house, in taking upon us the misery of our neighbours. Truly it were an excusable covetousness if we did, for affliction is a treasure, and scarce any man hath enough of it. No man hath affliction enough that is not matured and ripened by it, and made fit for God by that affliction. If a man carry treasure in bullion, or in a wedge of gold, and have none coined into current money, his treasure will not defray him as he travels. Tribulation is treasure in the nature of it, but it is not current money in the use of it, except we get nearer and nearer our home, heaven, by it. Another man may be sick too, and sick to death, and this affliction may lie in his bowels, as gold in a mine, and be of no use to him; but this bell, that tells me of his affliction, digs out and applies that gold to me: if by this consideration of another's danger I take mine own into contemplation, and so secure myself, by making my recourse to my God, who is our only security.`35:T833,bibEntry = (source, sourceIndex, sources) => html`${ source.date ? source.date < 0 ? html`${Math.abs(source.date)} BC` : source.date : "" }${ source.authors ? html`

${source.authors .map( author => `${ author.url ? `` : "" }${author.name}${author.url ? `` : ""}${ author.role ? `, ${author.role}` : "" }${ author.life ? ` (${author.life[0]}–${author.life[1] || ""})` : "" }` ) .join(", ")}${ source.translator ? ` trans. ${source.translator}` : "" }

` : "" }

${ source.title ? html`${source.title} ${ source.translatedTitle ? `(${source.translatedTitle})` : "" }` : source.alias }

${ source.urls ? html`

${source.urls .map(url => `${url.split("/")[2]}`) .join(", ")}

` : "" } ${source.summary ? html`

${source.summary}

` : ""} ${ source.links ? html`

Links ${source.links .map(link => `${link.label}`) .join(", ")}

` : "" } ${ source.relations ? html`

${source.relations.map(relation => { const src = sources.find(d => d.key && d.key === relation.key); if (!src) return ""; return html`

${relation.type} ${cite(src)}

`; })}

` : "" } ${ source.quotes ? html`

${source.quotes.length} quote${ source.quotes.length > 1 ? "s" : "" }

${quote[0] ? `${quote[0]}: ` : ""}${ quote[1] ? `“${quote[1]}” ` : "" }${quote[2] || ""}

` : "" } `36:T5e4,// md`Testing notes. ${note( // html`Hello, how are you?` // )} There it is. How’s it work?` note = (content, dir = "top", pad = true) => { if (pad) content = html`

${content}

`; const dirStyle = dir == "top" ? "bottom: 2em; left: 0;" : "top: 2em; left: 0;"; const node = html` ✻ `; const asterisk = node.querySelector(".asterisk"); const popover = node.querySelector(".popover"); asterisk.addEventListener("mouseenter", function (e) { asterisk.style.color = "#3182bd"; }); asterisk.addEventListener("mouseleave", function (e) { asterisk.style.color = "gray"; }); asterisk.addEventListener("click", function (e) { if (node.classList.contains("open")) { popover.style.display = "none"; node.classList.remove("open"); asterisk.innerText = "✻"; } else { node.classList.add("open"); popover.style.display = "block"; asterisk.innerText = "×"; } }); return node; }37:Tcd7,testSources = [ { key: "dresden", date: "c. 1300", alias: "Dresden codex", urls: [ "https://en.wikipedia.org/wiki/File:DresdenCodexCorrectReadingSequence.jpg", "http://digital.slub-dresden.de/fileadmin/data/280742827/280742827_tif/jpegs/280742827.pdf" ], links: [ { label: "Wikipedia", url: "https://en.wikipedia.org/wiki/Dresden_Codex" }, { label: "Other codices", url: "https://en.wikipedia.org/wiki/Maya_codices" } ], summary: "The most famous of the surviving Mayan codices; 74 pages of colored vegetable dyes on “amate” bark paper. The history of its European study began when the director of the Royal Library at Dresden bought it from a private collector in Vienna in 1739. There the numerals were deciphered by Ernst Förstemann in 1894. Suffered water damage in a basement during the WWII bombings." }, { key: "landa", date: 1566, authors: [{ name: "Diego de Landa", life: [1524, 1579] }], title: "Relación de las cosas de Yucatán", urls: ["https://www.wayeb.org/download/resources/landa.pdf"], relations: [{ type: "translated in", key: "gates" }] }, { key: "coe1992", date: 1992, title: "Breaking the Maya Code", authors: [{ name: "Michael D. Coe", life: [1929] }], summary: "Brimming with professional respect and awe and occasional disdain at the Mayanists who’ve come before; in reading it, one begins to understand how we have any sense at all of things that came so long before and were so long lost.", quotes: [ [ null, "Brasseur’s commentary accompanying the Troano facsimile is a case study in the fallacy of misplaced concreteness. Without the least idea of the order in which the Troano glyphs were to be read (he got them backwards), he began applying Landa’s ‘A,B,C,’ _as an alphabet_, to each glyph. The results were disastrous: his readings were nonsensical and patently false, although he remained oblivious to criticism. His incredible carelessness even led him to invent a letter for the Landa “alphabet” which is nowhere to be found in the original. As a result, any kind of phonetic approach to Maya hieroglyphic writing was thrown into an opprobrium from which it took almost a century to recover. Brasseur went off the deep end, and not just in his ill-founded application of the data from Landa. As historian Robert Brunhouse has told us, ‘… as book after book appeared, his ideas grew more strange and his explanations more attenuated, so that serious readers who had respected him increasingly lost confidence in his utterances. Why his fertile imagination got the better of him is not clear.’ Diffusionist obsessions seem to have been the trap of many otherwise sane Americanists, who just could not bring themselves to believe that New World civilizations were autochthonous. Remember the Lost Tribes of Israel hobbyhorse that bankrupted Kingsborough? Well, in Brasseur’s case his hobbyhorse was the myth of Atlantis, the continent that had supposedly sunk beneath the waves in ancient times, from which cataclysm refugees bearing the arts of civilized life had supposedly reached Yucatán and Central America." ] ] } ]38:[] 31:{"id":"d72b703c709df68b","slug":"scrapbook","title":"Scrapbook","thumbnail":"3bec46a995e180f16945952efd01c1dc87bb7c5e4db529cb0c0e25080da2112c","access_level":"public","create_time":"$D2019-03-04T19:17:42.138Z","update_time":"$D2024-01-11T18:49:16.372Z","view_time":null,"first_public_time":"$D2019-04-30T05:08:50.057Z","has_unpublished_edits":null,"fork":false,"stars":6,"starred":false,"owner":{"type":"team","id":"97290e936c339d8e","login":"tophtucker","name":"Toph Tucker","avatar_url":"https://avatars-next.observableusercontent.com/3706c31a8f9c59bb716c022c04b9c073144cd1368b78ac85f49139be6c93c34e","tier":"pro_2026"},"version":967,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"0bb2842b01e0c652","login":"tophtucker","name":"Toph Tucker","avatar_url":"https://avatars-next.observableusercontent.com/3706c31a8f9c59bb716c022c04b9c073144cd1368b78ac85f49139be6c93c34e","tier":null}],"members":[{"type":"individual","id":"0bb2842b01e0c652","login":"tophtucker","name":"Toph Tucker","avatar_url":"https://avatars-next.observableusercontent.com/3706c31a8f9c59bb716c022c04b9c073144cd1368b78ac85f49139be6c93c34e","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":3,"collection":null,"type":"notebook","body":{"title":"Scrapbook","cells":[{"id":0,"value":"# Scrapbook\nThis is an assortment of little helpers I’ve accumulated over the years. Others have made similar notebooks, like [@tomlarkworthy/utils](https://observablehq.com/@tomlarkworthy/utils), [@makio135/utilities](https://observablehq.com/@makio135/utilities), [@jrus/misc](https://observablehq.com/@jrus/misc), [@mythmon/bonus-lib](https://observablehq.com/@mythmon/bonus-lib), and [@oluckyman/toolbelt](https://observablehq.com/@oluckyman/toolbelt).","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":297,"value":"---\n## Components","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"table = data => {\n const keys = Object.keys(data[0])\n return html`\n \n \n \n ${keys.map(key => html``)}\n \n \n \n ${data.map((d,i) => html`\n \n ${keys.map(key => html``)}\n `)}\n \n

i	${key}
${i}	${d[key]}

`\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":381,"value":"// untested w.i.p.\n// zipCols([md`# 1`, md`hello`], [md`# 2`, md`goodbye`])\nzipCols = (...cols) => {\n const colWidth = `${100 / cols.length}%`;\n const colStyle = d3\n .range(cols.length)\n .map(() => colWidth)\n .join(\" \");\n const cells = d3.merge(d3.transpose(cols));\n return html`\n

\n ${cells.map((cell) => html`

${cell}

`)}\n

`;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":452,"value":"$33","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":879,"value":"notice = ((contents) => htl.html`\n

\n ${contents}\n

\n`)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":913,"value":"function preview({ path, title, author, thumbnail, date }) {\n return html`\n (event.currentTarget.firstElementChild.style.borderColor =\n \"#1b1e23\")} onmouseout=${event =>\n (event.currentTarget.firstElementChild.style.borderColor = \"#e8e8e8\")}>\n

${title}

${formatDate(\n date\n )}

\n`;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":920,"value":"// todo: UTC?\nformatDate = date =>\n date\n ? new Date(date).toLocaleDateString(\"en-US\", {\n weekday: 'long',\n year: 'numeric',\n month: 'long',\n day: 'numeric'\n })\n : \"\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":944,"value":"// Forked from Harry Stevens’ https://observablehq.com/@harrystevens/toggle-button-text\nfunction PlayButton({value = false} = {}) {\n const onText = \"Pause\";\n const offText = \"Play\";\n const button = htl.html``;\n const node = html`

${button}

`;\n node.value = value;\n button.onclick = () => {\n node.value = !node.value;\n button.innerHTML = node.value ? onText : offText;\n node.dispatchEvent(new Event(\"input\", {bubbles: true}));\n }\n return node;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":216,"value":"---\n\n## Data","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":300,"value":"// https://stackoverflow.com/a/4467559/120290\nmod = (number, modulus) => ((number % modulus) + modulus) % modulus","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":43,"value":"geoMean = arr => Π(arr) ** (1 / arr.length)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":45,"value":"Π = arr => arr.reduce((acc, cur) => acc * cur, 1)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":48,"value":"// nice and short but seems to take about 256× as long as @AymKdn's answer for 1,000 elements, and 1,058× as long for 10,000 elements! https://stackoverflow.com/questions/8495687/split-array-into-chunks\nfunction chunksRecursive(arr, n) {\n return arr.length\n ? [arr.slice(0, n), ...chunksRecursive(arr.slice(n), n)]\n : [];\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":236,"value":"// by @AymKdn https://stackoverflow.com/a/24782004/120290\nfunction chunks(arr, chunkSize) {\n var R = [];\n for (var i = 0, len = arr.length; i < len; i += chunkSize)\n R.push(arr.slice(i, i + chunkSize));\n return R;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":53,"value":"runningSum = arr => arr\n .reduce((acc, cur) => acc.concat([(acc.length > 0 ? acc[acc.length - 1] : 0) + cur]), [])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":161,"value":"cumSum = arr =>\n arr.reduce((acc, cur) => acc.concat([acc[acc.length - 1] + cur]), [0])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":247,"value":"// modified from\n// https://stackoverflow.com/questions/10003683/extract-get-a-number-from-a-string\nparseInts = str => str.match(/\\d+/g).map(d => parseInt(d))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":478,"value":"scale = (domain, range) => x =>\n ((range[1] - range[0]) / (domain[1] - domain[0])) * x + range[0] - domain[0]","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":628,"value":"// curried!\n// like derivatives, but not infinitesimal / instantaneous\nfunction differences(n) {\n return series =>\n n ? differences(n - 1)(series.map((d, i, arr) => d - arr[i - 1])) : series;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":500,"value":"// curried!\n// trailing\nsma = n => arr =>\n n <= 1 ? arr : arr.map((d, i, arr) => d3.mean(arr.slice(i - n + 1, i + 1)))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":655,"value":"mapEach = callback => map =>\n new Map(\n d3.zip(Array.from(map.keys()), Array.from(map.values()).map(callback))\n )","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":657,"value":"mapZip = callback => map =>\n new Map(d3.zip(Array.from(map.keys()), callback(Array.from(map.values()))))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":721,"value":"resample = (arr, fn, accessor, reduce) =>\n Array.from(d3.rollup(arr, reduce, d => fn(accessor(d))).values())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":767,"value":"// d3.hierarchy accepts nested JSON, but what if you built the hierarchy with d3.stratify and want a serializable thing to pass around that you can pass back into d3.hierarchy? I’m sure this’ll break in various cases, and it drops all data aside from the value. More info: https://observablehq.com/@tophtucker/d3-hierarchy-to-json\nfunction hierarchyToJson(root) {\n const obj = { name: root.id };\n if (root.children) obj.children = root.children.map(hierarchyToJson);\n if (root.data && root.data.value) obj.value = root.data.value;\n return obj;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":788,"value":"// https://observablehq.com/@tophtucker/mandelbrots-binomial-time-bending\n// e.g. getRandomWalk(1000, 5, d3.randomNormal())\n// variations https://observablehq.com/d/7973ef3782568eae\ngetRandomWalk = (n, initial, delta) =>\n d3\n .range(n - 1)\n .map(d => delta())\n .reduce(\n (acc, cur) =>\n acc.concat([\n [acc[acc.length - 1][0] + 1, acc[acc.length - 1][1] * (1 + cur)]\n ]),\n [[0, initial]]\n )","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":414,"value":"// todo. like when series are defined on dif days but you wanna stack it. (is that irresponsible?)\ninterpolateGappy = null","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":875,"value":"// move the `i`th element in `arr` `d` spaces\n// e.g. move([\"a\", \"b\", \"c\"], 1, -1) → [\"b\", \"a\", \"c\"]\nfunction move(arr, i, d) {\n // if move would take the element out of bounds, do nothing\n if (i + d < 0) return arr;\n if (i + d > arr.length - 1) return arr;\n\n const newArr = arr.slice(0); // make copy\n newArr.splice(i, 1); // remove from old position\n newArr.splice(i + d, 0, arr[i]); // add in new position\n return newArr;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":886,"value":"pct = (arr, condition) => arr.filter(condition).length / arr.length","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":909,"value":"// For use with DOM.download:\n// DOM.download(toBlob(data), \"data.json\")\n// DOM.download(toBlob(data, true), \"data.csv\")\n// Inspired by https://observablehq.com/@jeremiak/download-data-button\ntoBlob = (data, csv = false) =>\n csv\n ? new Blob([d3.csvFormat(data)], { type: \"text/csv\" })\n : new Blob([JSON.stringify(data, null, 2)], {\n type: \"application/json\"\n })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":212,"value":"---\n## Writing","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":20,"value":"TK = note => html`TK${note !== undefined ? `^${note}` : \"\"}`\n// delete this before publishing; if there are any TKs remaining, it'll error!\n// tk: somehow make it store TKs?? is that what mutable is for","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":73,"value":"draft = () => html`\n \n DRAFT\n \n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":373,"value":"// hashed to [0, 360]\nstrToHue = function(str) {\n var hash = 0,\n i,\n chr;\n if (str.length === 0) return hash;\n for (i = 0; i < str.length; i++) {\n chr = str.charCodeAt(i);\n hash = ((hash << 2) + chr) % 360;\n }\n return hash;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":775,"value":"// alphabetical to [0, 1], treating strings as base-26 numbers\n// https://bl.ocks.org/tophtucker/15466bc6144319edeb5bbc6392db11ea\nstrToNumber = string => {\n var domain = [\"A\".charCodeAt(0), \"Z\".charCodeAt(0) + 1];\n return string\n .split('')\n .map(d => d.toUpperCase().charCodeAt(0) - \"A\".charCodeAt(0))\n .map((d, i) => d * Math.pow(domain[1] - domain[0], -(i + 1)))\n .reduce((a, b) => a + b);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":376,"value":"tag = name => {\n const hash = strToHue(name);\n return `${name}`;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":419,"value":"lorem = n =>\n d3\n .range(Math.ceil(n / loremSrc.length))\n .map(() => loremSrc)\n .join(\"\\n\\n\")\n .substr(0, n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":467,"value":"$34","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":241,"value":"epigraph = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":194,"value":"---\n## Graphics","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":4,"value":"setX = d => sel => sel.attr(\"x1\", d[0]).attr(\"x2\", d[1])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"setY = d => sel => sel.attr(\"y1\", d[0]).attr(\"y2\", d[1])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":10,"value":"setXY = d => sel => sel\n .attr(\"x1\", d[0][0])\n .attr(\"y1\", d[0][1])\n .attr(\"x2\", d[1][0])\n .attr(\"y2\", d[1][1])","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"parallelogram = (a, b) => [\n [0, 0], a, [a[0] + b[0], a[1] + b[1]], b\n]","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":68,"value":"poly = arr => \"M\" + arr.join(\"L\") + \"Z\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":229,"value":"getArchimedeanSpiral = (innerRadius = 1, outerRadius = 2) =>\n d3\n .range(100)\n .map((d, i, arr) => (Math.PI * 2 * d) / (arr.length - 1))\n .map(d => {\n const coef = (outerRadius - innerRadius) / (Math.PI * 2);\n return [\n -(innerRadius + coef * d) * Math.cos(d),\n (innerRadius + coef * d) * Math.sin(d)\n ];\n })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":785,"value":"// from mike e.g. https://observablehq.com/@d3/connected-scatterplot\nfunction halo(sel) {\n sel\n .select(function() {\n return this.parentNode.insertBefore(this.cloneNode(true), this);\n })\n .attr(\"fill\", \"none\")\n .attr(\"stroke\", \"white\")\n .attr(\"stroke-width\", 4)\n .attr(\"stroke-linejoin\", \"round\");\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":110,"value":"---\n## Bibliography","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":87,"value":"// bibliography(testSources)\nbibliography = (_sources, mini) => {\n // source date may be a string like \"c. 1250–1450\";\n // sorts by the avg of ints in string, i.e. avg date\n const getDate = (d) =>\n typeof d.date === \"string\" ? d3.mean(parseInts(d.date)) : d.date;\n const sources = _sources.slice(0).sort((a, b) => {\n const da = getDate(a);\n const db = getDate(b);\n return !da ? 1 : !db ? -1 : da - db;\n });\n return html`\n ${bibliographyStyles}\n \n ${sources.map(mini ? bibEntryMini : bibEntry)}\n

`;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":278,"value":"$35","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":274,"value":"bibEntryMini = source => html`${\n source.date\n ? source.date < 0\n ? html`${Math.abs(source.date)} BC`\n : source.date\n : \"\"\n}${\n source.authors\n ? source.authors.map(author => author.name).join(\", \") + \", \"\n : \"\"\n} \n${\n source.title\n ? html`${source.title} ${\n source.translatedTitle ? `(${source.translatedTitle})` : \"\"\n }`\n : source.alias\n}\n${\n source.urls\n ? source.urls\n .map(url => `${url.split(\"/\")[2]}`)\n .join(\", \")\n : \"\"\n}\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":141,"value":"cite = d =>\n html`${d.title ? `${d.title}` : d.alias}${\n d.date ? ` ^${d.date}` : \"\"\n }`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":164,"value":"// quoter(testSources)(\"coe1992\", 0)\nquoter = (sources) => (key, i, dir = \"top\") => {\n const src = sources.find((d) => d.key === key);\n const title = src.title ? html`${src.title}` : src.alias;\n const authors = src.authors\n ? src.authors\n .map((d) => d.name + (d.role ? ` (${d.role})` : \"\"))\n .join(\", \") + \", \"\n : \"\";\n const quote = src.quotes ? src.quotes[i] : false;\n const url =\n src.urls && src.urls.length\n ? html`${src.urls[0].split(\"/\")[2]}`\n : \"\";\n const content = md`${\n quote\n ? `

\n ${quote[0] ? quote[0] + \":\" : \"\"} \n ${quote[1] ? `“${quote[1]}”` : \"\"} \n ${quote[2] || \"\"}\n

`\n : \"\"\n }

\n ${title}, \n ${authors}${src.date} \n ${url}\n

`;\n return note(content, dir);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":305,"value":"$36","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":104,"value":"bibliographyStyles = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":173,"value":"$37","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":422,"value":"---\n\n## Debugging","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":426,"value":"// by nikhil :)\ntap = (e, ...f) => console.log(e, ...f) || e","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":425,"value":"// by nikhil :)\nftap = f => (...args) => tap(f(...args), ...args)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":808,"value":"function countKeys(obj) {\n return typeof obj === \"object\"\n ? Object.keys(obj).length + d3.sum(Object.values(obj).map(countKeys))\n : 0;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":670,"value":"---\n\n## Math","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":672,"value":"// x0 is initial value, T is doubling time\nexp = (x0, T) => t => x0 * 2 ** (t / T)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":675,"value":"expInv = (x0, T) => y => (T * Math.log(y / (x0 / 2))) / Math.LN2 - T","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":679,"value":"// https://en.wikipedia.org/wiki/Logistic_function\nlogistic = (x0, L, k) => x => L / (1 + Math.exp(-k * (x - x0)))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":681,"value":"// https://www.wolframcloud.com/env/86814699-7e22-4b79-86b3-26093d8772e6\ndLogistic = (x0, L, k) => x =>\n (L * k * Math.exp(-k * (x - x0))) / (1 + Math.exp(-k * (x - x0))) ** 2","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":685,"value":"// it's +/-; this gives - bc thats what i needed at the time…\ndLogisticFindX0 = (L, k, x, y) =>\n -(\n k * x +\n Math.log(\n (k * L - 2 * y - y * Math.sqrt(-((k * L * (-k * L + 4 * y)) / y ** 2))) /\n (2 * y)\n )\n ) / k","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":882,"value":"// f(x) = \\text{from} + (\\text{to} - \\text{from})\\left(0.5 - 0.5\\cos\\left(\\frac{2\\pi}{\\text{duration}}\\right)x\\right)\nfunction oscillate(from, to, duration) {\n return x => from + (to - from) * (0.5 - 0.5 * Math.cos((2 * Math.PI / duration) * x))\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":740,"value":"---\n## Sets\nBy Sydney!","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":741,"value":"setEqual = (a, b) => {\n if (a === b) return true;\n if (a.size !== b.size) return false;\n for (let i of a) if (!b.has(i)) return false;\n return true;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":756,"value":"union = sets => {\n return new Set([].concat(...sets.map(s => [...s])));\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":754,"value":"intersection = (set1, set2) => {\n const common = new Set();\n for (let val of set1) {\n if (set2.has(val)) common.add(val);\n }\n return common;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":753,"value":"difference = (set1, set2) => {\n const diff = new Set();\n for (let val of set1) {\n if (!set2.has(val)) diff.add(val);\n }\n return diff;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":889,"value":"---\n## Fetch","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":891,"value":"// seems to be down? \ncorsFetch = url => fetch(`https://observable-cors.glitch.me/${url}`)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":936,"value":"corsProxy = (url) => \"https://corsproxy.io/?\" + encodeURIComponent(url)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W38","stdlib":"1","titling":"auto"}} 32:"$31:body"