diff --git a/docs/package.json b/docs/package.json index 98a887454..67b28b25a 100644 --- a/docs/package.json +++ b/docs/package.json @@ -88,6 +88,7 @@ "github-slugger": "^2.0.0", "globals": "^17.5.0", "layerchart": "workspace:*", + "mathjs": "^15.2.0", "mdsx": "^0.0.7", "paneforge": "^1.0.2", "playwright": "^1.59.1", @@ -118,7 +119,6 @@ "vite-plugin-devtools-json": "^1.0.0", "vitest": "^4.1.4", "vitest-browser-svelte": "^2.1.0", - "mathjs": "^15.2.0", "zod": "^4.3.6" }, "dependencies": { @@ -134,6 +134,7 @@ "ansi_up": "^6.0.6", "codemirror": "^6.0.2", "d3-geo-projection": "^4.0.0", + "d3-regression": "^1.3.10", "flexsearch": "^0.8.212", "satori": "^0.26.0", "satori-html": "^0.3.2" diff --git a/docs/src/content/components/Regression.md b/docs/src/content/components/Regression.md new file mode 100644 index 000000000..7cdfd204d --- /dev/null +++ b/docs/src/content/components/Regression.md @@ -0,0 +1,8 @@ +--- +description: Composite mark rendering a regression line based on a set of data points. Supports various regression types including linear, quadratic, polynomial, exponential, logarithmic, power, and LOESS. +category: marks +layers: [svg] +related: [] +--- + +:example{ name="regression" showCode } diff --git a/docs/src/examples/components/Regression/regression.svelte b/docs/src/examples/components/Regression/regression.svelte new file mode 100644 index 000000000..8b885c576 --- /dev/null +++ b/docs/src/examples/components/Regression/regression.svelte @@ -0,0 +1,54 @@ + + + + + + + {#snippet marks()} + + + {/snippet} + + {#snippet tooltip({ context })} + + {#snippet children({ data })} + {toTitleCase(data.Name)} + + + + + {/snippet} + + {/snippet} + diff --git a/docs/src/lib/components/Regression.svelte b/docs/src/lib/components/Regression.svelte new file mode 100644 index 000000000..d295bdadf --- /dev/null +++ b/docs/src/lib/components/Regression.svelte @@ -0,0 +1,299 @@ + + + + +{#if pathData || confidenceBandPath} + + {#if pathData} + + {/if} + {#if confidenceBandPath} + + {/if} + +{/if} diff --git a/docs/src/lib/components/controls/RegressionControls.svelte b/docs/src/lib/components/controls/RegressionControls.svelte new file mode 100644 index 000000000..6c3260d72 --- /dev/null +++ b/docs/src/lib/components/controls/RegressionControls.svelte @@ -0,0 +1,69 @@ + + +
+
+ +
+
+ + +
+
diff --git a/docs/src/lib/data.remote.ts b/docs/src/lib/data.remote.ts index 56fbf9908..b662710c0 100644 --- a/docs/src/lib/data.remote.ts +++ b/docs/src/lib/data.remote.ts @@ -13,6 +13,7 @@ import type { CivilizationTimeline } from '$static/data/examples/date/civilizati import type { HydroData } from '$static/data/examples/date/hydro.js'; import type { AppleTickerData } from '$static/data/examples/date/apple-ticker.js'; import type { NewPassengerCars } from '$static/data/examples/new-passenger-cars.js'; +import type { CarsVegaData } from '$static/data/examples/cars-vega.js'; export const getGroupData = prerender(async () => { const { fetch } = getRequestEvent(); @@ -256,6 +257,12 @@ export const getCars = prerender(async () => { return data; }); +export const getCarsVega = prerender(async () => { + const { fetch } = getRequestEvent(); + const data = (await fetch('/data/examples/cars-vega.json').then((r) => r.json())) as CarsVegaData[]; + return data; +}); + export const getNewPassengerCars = prerender(async () => { const { fetch } = getRequestEvent(); const data = await fetch('/data/examples/new-passenger-cars.csv').then(async (r) => diff --git a/docs/src/types/d3-regression.d.ts b/docs/src/types/d3-regression.d.ts new file mode 100644 index 000000000..88316c970 --- /dev/null +++ b/docs/src/types/d3-regression.d.ts @@ -0,0 +1,36 @@ +declare module 'd3-regression' { + type Accessor = (d: T) => number; + + interface RegressionBase { + (data: T[]): [number, number][]; + x(): Accessor; + x(fn: Accessor): this; + y(): Accessor; + y(fn: Accessor): this; + domain(): [number, number] | undefined; + domain(d: [number, number]): this; + } + + interface LoessRegression { + (data: T[]): [number, number][]; + x(): Accessor; + x(fn: Accessor): this; + y(): Accessor; + y(fn: Accessor): this; + bandwidth(): number; + bandwidth(b: number): this; + } + + interface PolyRegression extends RegressionBase { + order(): number; + order(n: number): this; + } + + export function regressionLinear(): RegressionBase; + export function regressionQuad(): RegressionBase; + export function regressionPoly(): PolyRegression; + export function regressionExp(): RegressionBase; + export function regressionLog(): RegressionBase; + export function regressionPow(): RegressionBase; + export function regressionLoess(): LoessRegression; +} diff --git a/docs/static/data/examples/cars-vega.d.ts b/docs/static/data/examples/cars-vega.d.ts new file mode 100644 index 000000000..e7ab91178 --- /dev/null +++ b/docs/static/data/examples/cars-vega.d.ts @@ -0,0 +1,11 @@ +export type CarsVegaData = { + Name: string; + Miles_per_Gallon: number | null; + Cylinders: number; + Displacement: number; + Horsepower: number | null; + Weight_in_lbs: number | null; + Acceleration: number; + Year: string; + Origin: 'USA' | 'Europe' | 'Japan'; +}; diff --git a/docs/static/data/examples/cars-vega.json b/docs/static/data/examples/cars-vega.json new file mode 100644 index 000000000..1d56d3fa6 --- /dev/null +++ b/docs/static/data/examples/cars-vega.json @@ -0,0 +1,4468 @@ +[ + { + "Name":"chevrolet chevelle malibu", + "Miles_per_Gallon":18, + "Cylinders":8, + "Displacement":307, + "Horsepower":130, + "Weight_in_lbs":3504, + "Acceleration":12, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"buick skylark 320", + "Miles_per_Gallon":15, + "Cylinders":8, + "Displacement":350, + "Horsepower":165, + "Weight_in_lbs":3693, + "Acceleration":11.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"plymouth satellite", + "Miles_per_Gallon":18, + "Cylinders":8, + "Displacement":318, + "Horsepower":150, + "Weight_in_lbs":3436, + "Acceleration":11, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"amc rebel sst", + "Miles_per_Gallon":16, + "Cylinders":8, + "Displacement":304, + "Horsepower":150, + "Weight_in_lbs":3433, + "Acceleration":12, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"ford torino", + "Miles_per_Gallon":17, + "Cylinders":8, + "Displacement":302, + "Horsepower":140, + "Weight_in_lbs":3449, + "Acceleration":10.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"ford galaxie 500", + "Miles_per_Gallon":15, + "Cylinders":8, + "Displacement":429, + "Horsepower":198, + "Weight_in_lbs":4341, + "Acceleration":10, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"chevrolet impala", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":454, + "Horsepower":220, + "Weight_in_lbs":4354, + "Acceleration":9, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"plymouth fury iii", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":440, + "Horsepower":215, + "Weight_in_lbs":4312, + "Acceleration":8.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"pontiac catalina", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":455, + "Horsepower":225, + "Weight_in_lbs":4425, + "Acceleration":10, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"amc ambassador dpl", + "Miles_per_Gallon":15, + "Cylinders":8, + "Displacement":390, + "Horsepower":190, + "Weight_in_lbs":3850, + "Acceleration":8.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"citroen ds-21 pallas", + "Miles_per_Gallon":null, + "Cylinders":4, + "Displacement":133, + "Horsepower":115, + "Weight_in_lbs":3090, + "Acceleration":17.5, + "Year":"1970-01-01", + "Origin":"Europe" + }, + { + "Name":"chevrolet chevelle concours (sw)", + "Miles_per_Gallon":null, + "Cylinders":8, + "Displacement":350, + "Horsepower":165, + "Weight_in_lbs":4142, + "Acceleration":11.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"ford torino (sw)", + "Miles_per_Gallon":null, + "Cylinders":8, + "Displacement":351, + "Horsepower":153, + "Weight_in_lbs":4034, + "Acceleration":11, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"plymouth satellite (sw)", + "Miles_per_Gallon":null, + "Cylinders":8, + "Displacement":383, + "Horsepower":175, + "Weight_in_lbs":4166, + "Acceleration":10.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"amc rebel sst (sw)", + "Miles_per_Gallon":null, + "Cylinders":8, + "Displacement":360, + "Horsepower":175, + "Weight_in_lbs":3850, + "Acceleration":11, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"dodge challenger se", + "Miles_per_Gallon":15, + "Cylinders":8, + "Displacement":383, + "Horsepower":170, + "Weight_in_lbs":3563, + "Acceleration":10, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"plymouth 'cuda 340", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":340, + "Horsepower":160, + "Weight_in_lbs":3609, + "Acceleration":8, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"ford mustang boss 302", + "Miles_per_Gallon":null, + "Cylinders":8, + "Displacement":302, + "Horsepower":140, + "Weight_in_lbs":3353, + "Acceleration":8, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"chevrolet monte carlo", + "Miles_per_Gallon":15, + "Cylinders":8, + "Displacement":400, + "Horsepower":150, + "Weight_in_lbs":3761, + "Acceleration":9.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"buick estate wagon (sw)", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":455, + "Horsepower":225, + "Weight_in_lbs":3086, + "Acceleration":10, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"toyota corona mark ii", + "Miles_per_Gallon":24, + "Cylinders":4, + "Displacement":113, + "Horsepower":95, + "Weight_in_lbs":2372, + "Acceleration":15, + "Year":"1970-01-01", + "Origin":"Japan" + }, + { + "Name":"plymouth duster", + "Miles_per_Gallon":22, + "Cylinders":6, + "Displacement":198, + "Horsepower":95, + "Weight_in_lbs":2833, + "Acceleration":15.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"amc hornet", + "Miles_per_Gallon":18, + "Cylinders":6, + "Displacement":199, + "Horsepower":97, + "Weight_in_lbs":2774, + "Acceleration":15.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"ford maverick", + "Miles_per_Gallon":21, + "Cylinders":6, + "Displacement":200, + "Horsepower":85, + "Weight_in_lbs":2587, + "Acceleration":16, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"datsun pl510", + "Miles_per_Gallon":27, + "Cylinders":4, + "Displacement":97, + "Horsepower":88, + "Weight_in_lbs":2130, + "Acceleration":14.5, + "Year":"1970-01-01", + "Origin":"Japan" + }, + { + "Name":"volkswagen 1131 deluxe sedan", + "Miles_per_Gallon":26, + "Cylinders":4, + "Displacement":97, + "Horsepower":46, + "Weight_in_lbs":1835, + "Acceleration":20.5, + "Year":"1970-01-01", + "Origin":"Europe" + }, + { + "Name":"peugeot 504", + "Miles_per_Gallon":25, + "Cylinders":4, + "Displacement":110, + "Horsepower":87, + "Weight_in_lbs":2672, + "Acceleration":17.5, + "Year":"1970-01-01", + "Origin":"Europe" + }, + { + "Name":"audi 100 ls", + "Miles_per_Gallon":24, + "Cylinders":4, + "Displacement":107, + "Horsepower":90, + "Weight_in_lbs":2430, + "Acceleration":14.5, + "Year":"1970-01-01", + "Origin":"Europe" + }, + { + "Name":"saab 99e", + "Miles_per_Gallon":25, + "Cylinders":4, + "Displacement":104, + "Horsepower":95, + "Weight_in_lbs":2375, + "Acceleration":17.5, + "Year":"1970-01-01", + "Origin":"Europe" + }, + { + "Name":"bmw 2002", + "Miles_per_Gallon":26, + "Cylinders":4, + "Displacement":121, + "Horsepower":113, + "Weight_in_lbs":2234, + "Acceleration":12.5, + "Year":"1970-01-01", + "Origin":"Europe" + }, + { + "Name":"amc gremlin", + "Miles_per_Gallon":21, + "Cylinders":6, + "Displacement":199, + "Horsepower":90, + "Weight_in_lbs":2648, + "Acceleration":15, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"ford f250", + "Miles_per_Gallon":10, + "Cylinders":8, + "Displacement":360, + "Horsepower":215, + "Weight_in_lbs":4615, + "Acceleration":14, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"chevy c20", + "Miles_per_Gallon":10, + "Cylinders":8, + "Displacement":307, + "Horsepower":200, + "Weight_in_lbs":4376, + "Acceleration":15, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"dodge d200", + "Miles_per_Gallon":11, + "Cylinders":8, + "Displacement":318, + "Horsepower":210, + "Weight_in_lbs":4382, + "Acceleration":13.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"hi 1200d", + "Miles_per_Gallon":9, + "Cylinders":8, + "Displacement":304, + "Horsepower":193, + "Weight_in_lbs":4732, + "Acceleration":18.5, + "Year":"1970-01-01", + "Origin":"USA" + }, + { + "Name":"datsun pl510", + "Miles_per_Gallon":27, + "Cylinders":4, + "Displacement":97, + "Horsepower":88, + "Weight_in_lbs":2130, + "Acceleration":14.5, + "Year":"1971-01-01", + "Origin":"Japan" + }, + { + "Name":"chevrolet vega 2300", + "Miles_per_Gallon":28, + "Cylinders":4, + "Displacement":140, + "Horsepower":90, + "Weight_in_lbs":2264, + "Acceleration":15.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"toyota corona", + "Miles_per_Gallon":25, + "Cylinders":4, + "Displacement":113, + "Horsepower":95, + "Weight_in_lbs":2228, + "Acceleration":14, + "Year":"1971-01-01", + "Origin":"Japan" + }, + { + "Name":"ford pinto", + "Miles_per_Gallon":25, + "Cylinders":4, + "Displacement":98, + "Horsepower":null, + "Weight_in_lbs":2046, + "Acceleration":19, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"volkswagen super beetle 117", + "Miles_per_Gallon":null, + "Cylinders":4, + "Displacement":97, + "Horsepower":48, + "Weight_in_lbs":1978, + "Acceleration":20, + "Year":"1971-01-01", + "Origin":"Europe" + }, + { + "Name":"amc gremlin", + "Miles_per_Gallon":19, + "Cylinders":6, + "Displacement":232, + "Horsepower":100, + "Weight_in_lbs":2634, + "Acceleration":13, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"plymouth satellite custom", + "Miles_per_Gallon":16, + "Cylinders":6, + "Displacement":225, + "Horsepower":105, + "Weight_in_lbs":3439, + "Acceleration":15.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"chevrolet chevelle malibu", + "Miles_per_Gallon":17, + "Cylinders":6, + "Displacement":250, + "Horsepower":100, + "Weight_in_lbs":3329, + "Acceleration":15.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"ford torino 500", + "Miles_per_Gallon":19, + "Cylinders":6, + "Displacement":250, + "Horsepower":88, + "Weight_in_lbs":3302, + "Acceleration":15.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"amc matador", + "Miles_per_Gallon":18, + "Cylinders":6, + "Displacement":232, + "Horsepower":100, + "Weight_in_lbs":3288, + "Acceleration":15.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"chevrolet impala", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":350, + "Horsepower":165, + "Weight_in_lbs":4209, + "Acceleration":12, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"pontiac catalina brougham", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":400, + "Horsepower":175, + "Weight_in_lbs":4464, + "Acceleration":11.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"ford galaxie 500", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":351, + "Horsepower":153, + "Weight_in_lbs":4154, + "Acceleration":13.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"plymouth fury iii", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":318, + "Horsepower":150, + "Weight_in_lbs":4096, + "Acceleration":13, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"dodge monaco (sw)", + "Miles_per_Gallon":12, + "Cylinders":8, + "Displacement":383, + "Horsepower":180, + "Weight_in_lbs":4955, + "Acceleration":11.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"ford country squire (sw)", + "Miles_per_Gallon":13, + "Cylinders":8, + "Displacement":400, + "Horsepower":170, + "Weight_in_lbs":4746, + "Acceleration":12, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"pontiac safari (sw)", + "Miles_per_Gallon":13, + "Cylinders":8, + "Displacement":400, + "Horsepower":175, + "Weight_in_lbs":5140, + "Acceleration":12, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"amc hornet sportabout (sw)", + "Miles_per_Gallon":18, + "Cylinders":6, + "Displacement":258, + "Horsepower":110, + "Weight_in_lbs":2962, + "Acceleration":13.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"chevrolet vega (sw)", + "Miles_per_Gallon":22, + "Cylinders":4, + "Displacement":140, + "Horsepower":72, + "Weight_in_lbs":2408, + "Acceleration":19, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"pontiac firebird", + "Miles_per_Gallon":19, + "Cylinders":6, + "Displacement":250, + "Horsepower":100, + "Weight_in_lbs":3282, + "Acceleration":15, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"ford mustang", + "Miles_per_Gallon":18, + "Cylinders":6, + "Displacement":250, + "Horsepower":88, + "Weight_in_lbs":3139, + "Acceleration":14.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"mercury capri 2000", + "Miles_per_Gallon":23, + "Cylinders":4, + "Displacement":122, + "Horsepower":86, + "Weight_in_lbs":2220, + "Acceleration":14, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"opel 1900", + "Miles_per_Gallon":28, + "Cylinders":4, + "Displacement":116, + "Horsepower":90, + "Weight_in_lbs":2123, + "Acceleration":14, + "Year":"1971-01-01", + "Origin":"Europe" + }, + { + "Name":"peugeot 304", + "Miles_per_Gallon":30, + "Cylinders":4, + "Displacement":79, + "Horsepower":70, + "Weight_in_lbs":2074, + "Acceleration":19.5, + "Year":"1971-01-01", + "Origin":"Europe" + }, + { + "Name":"fiat 124b", + "Miles_per_Gallon":30, + "Cylinders":4, + "Displacement":88, + "Horsepower":76, + "Weight_in_lbs":2065, + "Acceleration":14.5, + "Year":"1971-01-01", + "Origin":"Europe" + }, + { + "Name":"toyota corolla 1200", + "Miles_per_Gallon":31, + "Cylinders":4, + "Displacement":71, + "Horsepower":65, + "Weight_in_lbs":1773, + "Acceleration":19, + "Year":"1971-01-01", + "Origin":"Japan" + }, + { + "Name":"datsun 1200", + "Miles_per_Gallon":35, + "Cylinders":4, + "Displacement":72, + "Horsepower":69, + "Weight_in_lbs":1613, + "Acceleration":18, + "Year":"1971-01-01", + "Origin":"Japan" + }, + { + "Name":"volkswagen model 111", + "Miles_per_Gallon":27, + "Cylinders":4, + "Displacement":97, + "Horsepower":60, + "Weight_in_lbs":1834, + "Acceleration":19, + "Year":"1971-01-01", + "Origin":"Europe" + }, + { + "Name":"plymouth cricket", + "Miles_per_Gallon":26, + "Cylinders":4, + "Displacement":91, + "Horsepower":70, + "Weight_in_lbs":1955, + "Acceleration":20.5, + "Year":"1971-01-01", + "Origin":"USA" + }, + { + "Name":"toyota corona hardtop", + "Miles_per_Gallon":24, + "Cylinders":4, + "Displacement":113, + "Horsepower":95, + "Weight_in_lbs":2278, + "Acceleration":15.5, + "Year":"1972-01-01", + "Origin":"Japan" + }, + { + "Name":"dodge colt hardtop", + "Miles_per_Gallon":25, + "Cylinders":4, + "Displacement":97.5, + "Horsepower":80, + "Weight_in_lbs":2126, + "Acceleration":17, + "Year":"1972-01-01", + "Origin":"USA" + }, + { + "Name":"volkswagen type 3", + "Miles_per_Gallon":23, + "Cylinders":4, + "Displacement":97, + "Horsepower":54, + "Weight_in_lbs":2254, + "Acceleration":23.5, + "Year":"1972-01-01", + "Origin":"Europe" + }, + { + "Name":"chevrolet vega", + "Miles_per_Gallon":20, + "Cylinders":4, + "Displacement":140, + "Horsepower":90, + "Weight_in_lbs":2408, + "Acceleration":19.5, + "Year":"1972-01-01", + "Origin":"USA" + }, + { + "Name":"ford pinto runabout", + "Miles_per_Gallon":21, + "Cylinders":4, + "Displacement":122, + "Horsepower":86, + "Weight_in_lbs":2226, + "Acceleration":16.5, + "Year":"1972-01-01", + "Origin":"USA" + }, + { + "Name":"chevrolet impala", + "Miles_per_Gallon":13, + "Cylinders":8, + "Displacement":350, + "Horsepower":165, + "Weight_in_lbs":4274, + "Acceleration":12, + "Year":"1972-01-01", + "Origin":"USA" + }, + { + "Name":"pontiac catalina", + "Miles_per_Gallon":14, + "Cylinders":8, + "Displacement":400, + "Horsepower":175, + "Weight_in_lbs":4385, + "Acceleration":12, + "Year":"1972-01-01", + "Origin":"USA" + }, + { + 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+ "Displacement":91, + "Horsepower":67, + "Weight_in_lbs":1995, + "Acceleration":16.2, + "Year":"1982-01-01", + "Origin":"Japan" + }, + { + "Name":"buick century limited", + "Miles_per_Gallon":25, + "Cylinders":6, + "Displacement":181, + "Horsepower":110, + "Weight_in_lbs":2945, + "Acceleration":16.4, + "Year":"1982-01-01", + "Origin":"USA" + }, + { + "Name":"oldsmobile cutlass ciera (diesel)", + "Miles_per_Gallon":38, + "Cylinders":6, + "Displacement":262, + "Horsepower":85, + "Weight_in_lbs":3015, + "Acceleration":17, + "Year":"1982-01-01", + "Origin":"USA" + }, + { + "Name":"chrysler lebaron medallion", + "Miles_per_Gallon":26, + "Cylinders":4, + "Displacement":156, + "Horsepower":92, + "Weight_in_lbs":2585, + "Acceleration":14.5, + "Year":"1982-01-01", + "Origin":"USA" + }, + { + "Name":"ford granada l", + "Miles_per_Gallon":22, + "Cylinders":6, + "Displacement":232, + "Horsepower":112, + "Weight_in_lbs":2835, + "Acceleration":14.7, + "Year":"1982-01-01", + "Origin":"USA" + }, + { 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"Year":"1982-01-01", + "Origin":"Europe" + }, + { + "Name":"dodge rampage", + "Miles_per_Gallon":32, + "Cylinders":4, + "Displacement":135, + "Horsepower":84, + "Weight_in_lbs":2295, + "Acceleration":11.6, + "Year":"1982-01-01", + "Origin":"USA" + }, + { + "Name":"ford ranger", + "Miles_per_Gallon":28, + "Cylinders":4, + "Displacement":120, + "Horsepower":79, + "Weight_in_lbs":2625, + "Acceleration":18.6, + "Year":"1982-01-01", + "Origin":"USA" + }, + { + "Name":"chevy s-10", + "Miles_per_Gallon":31, + "Cylinders":4, + "Displacement":119, + "Horsepower":82, + "Weight_in_lbs":2720, + "Acceleration":19.4, + "Year":"1982-01-01", + "Origin":"USA" + } +]