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Hubble constant approximation with PolyMath and Roassal
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x := #(0.028 0.076 0.108 0.136 0.153 0.226 0.283 0.359 0.363 0.408 0.438 0.472 0.476 0.476 0.493 0.556 0.639). | |
y := #(2.7 4.2 10.5 14.1 10.5 13.2 19.8 28.2 20.7 29.4 31.8 44.4 32.1 37.2 33 34.5 46.5). | |
lr := DhbLinearRegression new. | |
points := (1 to: x size) collect: [:i|( (x at: i)@(y at: i))]. | |
points do: [:i|lr add:i]. | |
p := lr asEstimatedPolynomial. | |
b := RTGrapher new. | |
lb := RTLegendBuilder new. | |
lb view: b view. | |
lb addText: ('H=', lr slope asString). | |
lb build. | |
ds := RTData new. | |
ds noDot. | |
ds points: (0 to: 0.8 by: 0.1). | |
ds x: #yourself. | |
ds y: [:i|p value: i]. | |
ds connectColor: (Color red). | |
b add: ds. | |
ds := RTData new. | |
ds points: points. | |
ds x: #x. | |
ds y: #y. | |
b add: ds. | |
b build. | |
b view |
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