2d:null 2e:["$","title",null,{"children":"Blurry bitemporal table | Toph Tucker | Observable"}] 33:[{"id":"9e4fe670a3cf3d7f7658fb4e88c1b7279928094d4b1bd44109db14d26dcb418acc23c7b28723b6c6181df4fdc0126d1c473315694fa577c4090c4b72c8ccba55","href":"https://static.observableusercontent.com/files/9e4fe670a3cf3d7f7658fb4e88c1b7279928094d4b1bd44109db14d26dcb418acc23c7b28723b6c6181df4fdc0126d1c473315694fa577c4090c4b72c8ccba55","name":"cbo-data.csv","type":"text/csv","lastModified":1615363956568.456,"size":2489},{"id":"0b5ffbbe4fe7797ce5758ec22faf485dd661de260d0cc6c1520b229bc3d56e42bc52776808aa171b7d3c53132bbef7d7183eddd7ec5aff7d6166d794305e30a8","href":"https://static.observableusercontent.com/files/0b5ffbbe4fe7797ce5758ec22faf485dd661de260d0cc6c1520b229bc3d56e42bc52776808aa171b7d3c53132bbef7d7183eddd7ec5aff7d6166d794305e30a8","name":"image.png","type":"image/png","lastModified":1615364661417.55,"size":72677}] 31:{"id":"ddd728311ad42073","slug":"blurry-bitemporal-table","title":"Blurry bitemporal table","thumbnail":"491fb3baa766c2acbe771c90ec3a7284ada713c280630280e8942bfffc2ddd7f","access_level":"public","create_time":"$D2021-03-10T08:12:29.193Z","update_time":"$D2021-03-10T08:37:25.538Z","view_time":null,"first_public_time":"$D2021-03-10T08:31:23.312Z","has_unpublished_edits":null,"fork":false,"stars":2,"starred":false,"owner":{"type":"team","id":"97290e936c339d8e","login":"tophtucker","name":"Toph Tucker","avatar_url":"https://avatars-next.observableusercontent.com/3706c31a8f9c59bb716c022c04b9c073144cd1368b78ac85f49139be6c93c34e","tier":"pro_2026"},"version":100,"publish_version":100,"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":1,"collection":{"id":"7bba3b9291b83a00","slug":"bitemporal","title":"Bitemporal","owner":{"id":"97290e936c339d8e","login":"tophtucker","name":"Toph Tucker"}},"type":"notebook","body":{"title":"Blurry bitemporal table","cells":[{"id":0,"value":"md`# Blurry bitemporal table\n\nContinuing a series of [visualizing bitemporal data](https://observablehq.com/collection/@tophtucker/bitemporal); Omar’s idea:`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":69,"value":"html`

`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":97,"value":"md`Here, the row represents the date on which a forecast was made, and the column represents that date it was made about. So reading across the first row tells you what the CBO thought interest rates were going to do from 2010 until 2020. Forecasts further in the future are blurrier. Read top to bottom to see the “actual” value for a year come into focus as the year approaches.`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"html`

\n CBO Interest Rate Forecasts\n

\n \n \n \n \n ${about.map(\n d =>\n html``\n )}\n \n \n \n ${on.map(\n dOn => html`\n \n ${about.map(\n dAbout => html``\n )}\n `\n )}\n \n

	${d.getFullYear()}
${dOn.getFullYear()}	\n ${getDatum(dOn, dAbout)}\n

\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":79,"value":"md`---`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":2,"value":"data = (await FileAttachment(\n \"cbo-data.csv\"\n).csv()).map(({ on, about, value }) => ({\n on: new Date(on),\n about: new Date(about),\n value: +value\n}))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":7,"value":"on = Array.from(new Set(data.map(d => +d.on)))\n .sort((a, b) => a - b)\n .map(d => new Date(d))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":14,"value":"about = Array.from(new Set(data.map(d => +d.about)))\n .sort((a, b) => a - b)\n .map(d => new Date(d))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":24,"value":"getDatum = (dOn, dAbout) => data\n .find(({on, about}) => +on === +dOn && +about === +dAbout)\n ?.value\n .toFixed(2) || \"\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":45,"value":"getFilter = (dOn, dAbout) => `blur(${d3.timeYear.count(dOn, dAbout) / 4}px)`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":10,"value":"d3 = require(\"d3@6\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W33","stdlib":"1","titling":"auto"}} 32:"$31:body"