29:null 2a:["$","title",null,{"children":"Dampened Random Walk | Beatriz Martínez | Observable"}] 2f:[] 2d:{"id":"479d82e09b691b0d","slug":null,"title":"Dampened Random Walk","thumbnail":"9ceb9aae018d648a12d74f3c86dc941012980658a60d5801f32e31edc1cb919e","access_level":"public","create_time":"$D2024-01-26T11:11:44.020Z","update_time":"$D2024-01-29T10:22:16.733Z","view_time":null,"first_public_time":"$D2024-01-26T11:11:44.020Z","fork":{"id":"cd9c4a97c99c88b3","slug":"dampened-random-walk","title":"Dampened Random Walk","owner":{"id":"8c2e47252fd4995c","login":"mbostock","name":"Mike Bostock"}},"stars":0,"starred":false,"owner":{"type":"team","id":"24df172f750e2226","login":"maritrinez","name":"Beatriz Martínez","avatar_url":"https://avatars-next.observableusercontent.com/203873aa26b99a1ec4a48a781f51932dc306228c9f73b383ada133c6f2f181b7","tier":"starter_2024"},"version":202,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"8655f512d4072d08","login":"maritrinez","name":"Beatriz Martínez","avatar_url":"https://avatars-next.observableusercontent.com/203873aa26b99a1ec4a48a781f51932dc306228c9f73b383ada133c6f2f181b7","tier":null}],"members":[{"type":"individual","id":"8655f512d4072d08","login":"maritrinez","name":"Beatriz Martínez","avatar_url":"https://avatars-next.observableusercontent.com/203873aa26b99a1ec4a48a781f51932dc306228c9f73b383ada133c6f2f181b7","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"Dampened Random Walk","cells":[{"id":0,"value":"md`# Dampened Random Walk`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":33,"value":"viewof decay = {\n const form = html``;\n form.i.oninput = () => form.o.value = `${(form.value = Math.pow(form.i.valueAsNumber, 3)).toFixed(2)} decay`;\n form.i.oninput();\n return form;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":46,"value":"viewof noise = {\n const form = html``;\n form.i.oninput = () => form.o.value = `${(form.value = form.i.valueAsNumber).toFixed(2)} noise`;\n form.i.oninput();\n return form;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":7,"value":"randomLines = {\n const svg = d3.select(DOM.svg(width, height))\n .attr(\"fill\", \"none\")\n .attr(\"stroke\", \"black\")\n .attr(\"stroke-width\", 0.5);\n \n for (let i = 0; i < 50; ++i) {\n yield svg.node();\n\n svg.append(\"path\")\n .attr(\"d\", line(dampenedRandomWalk()))\n \n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":19,"value":"function dampenedRandomWalk() {\n let target = 0.5 + (Math.random() - 0.5)\n let value = Math.random();\n let values = [value];\n \n for (let i = 0; i < n; ++i) {\n let dec = decay + (Math.random() - 0.5);\n console.log(value)\n \n values.push(value += (Math.random() - 0.5) * noise + (target - value) * dec);\n }\n return values;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":143,"value":"function strokeNone() {\n return `0 ${this.getTotalLength()}`;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":105,"value":"function strokeIn() {\n const l = this.getTotalLength();\n return d3.interpolate(`0 ${l}`, `${l} 0`);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":101,"value":"function strokeOut() {\n const l = this.getTotalLength();\n return d3.interpolate(`0 0 ${l}`, `0 ${l} 0`);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":85,"value":"line = d3.line().x((d, i) => i / n * width).y(d => d * height).curve(d3.curveBasis)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":14,"value":"n = 10","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":10,"value":"height = 830\n","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":192,"value":"width = 1440\n","pinned":true,"hidden":false,"mode":"ojs","author":"$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":"$undefined"}],"files":"$W2f","stdlib":"1","titling":"auto"}} 2e:"$2d:body"