File:Correlation_examples.png
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OpisCorrelation examples.png | See below. |
Datum | 8 decembar 2007 (original upload date) |
Izvor |
Transferred from en.wikipedia to Commons by jtneill. ![]() This diagram was created with Mathematica. |
Autor | Imagecreator at engleski Wikipedia |
Ostale verzije | File:CovrarianceCorrelation.svg, File:Correlation examples2.svg |
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Sažetak
An example of the correlation of x and y for various distributions of (x,y) pairs. It was created by this Mathematica 6 code, which I wrote and release into the public domain (needs makePlot!):
n = 2000; GraphicsArray[{ Table[makePlot[ Table[{RandomReal[NormalDistribution[0, 1]], (1 - Abs[w])* RandomReal[NormalDistribution[0, 1]]} . RotationMatrix[-Sign[w]*Pi/4], {i, -1, 1, 2./n}], 1000], {w, 1, -1, -1/3}], Table[makePlot[Table[{x, slope*x}, {x, -1, 1, 2./n}], 100], {slope, 1, -1, -1/3}], { makePlot[ Table[{x + RandomReal[]/3, 4 (x^2 - 1/2)^2 + RandomReal[]/500} , {x, -1, 1, 2./n}], 2000], makePlot[ Table[{RandomReal[{-1, 1}], RandomReal[{-1, 1}]} . RotationMatrix[-Pi/8], {x, -1, 1, 2./n}], 1400], makePlot[ Table[{RandomReal[{-1, 1}], RandomReal[{-1, 1}]} . RotationMatrix[-Pi/4], {x, -1, 1, 2./n}], 1400], makePlot[Table[{x, x^2 + RandomReal[]}/2, {x, -1, 1, 2./n}], 1400], makePlot[ Table[{x, x^2 + RandomReal[]/2}*(RandomInteger[1]*2 - 1), {x, -1, 1, 2./n}], 1000], makePlot[ Table[{Sin[x*Pi] + RandomReal[NormalDistribution[0, 1/8]], Cos[x*Pi] + RandomReal[NormalDistribution[0, 1/8]]}, {x, -1, 1, 2./n}], 1400], makePlot[ Table[{RandomReal[NormalDistribution[0, 1/3]], RandomReal[ NormalDistribution[0, 1/3]]} + {RandomInteger[1]*2 - 1, RandomInteger[1]*2 - 1}, {x, -1, 1, 2./n}], 1400] } }]
Licenciranje
Public domainPublic domainfalsefalse |
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Ovaj rad je objavljen u javno vlasništvo od strane autora Imagecreator at engleski Wikipedia. Ovo se primjenjuje širom svijeta. U nekim državama ovo zakonski nije moguće; u tom slučaju: Imagecreator dopušta svima pravo korištenja ovog rada u bilo koju svrhu, bez ikakvih uslova, osim ako su takvi uslovi zakonski neophodni.Public domainPublic domainfalsefalse |
Originalni zapisnik postavljanja
The original description page was here. All following user names refer to en.wikipedia.
- 2007-12-08 19:16 Imagecreator 824×346×8 (20371 bytes) == Summary == An example of the correlation of x and y for various distributions of (x,y) pairs. It was created by this Mathematica 6 code, which I wrote and release into the public domain: <pre> (*Several sets of (x,y) points, with the correlation coef
- 2007-12-08 18:48 Imagecreator 824×346×8 (21374 bytes) An example of the correlation of x and y for various distributions of (x,y) pairs. It was created by this Mathematica 6 code, which I wrote and release into the public domain: (*Several sets of (x,y) points, with the correlation coefficient of x \ and y
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8 decembar 2007
media type engleski
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checksum engleski
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346 piksel
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Historija datoteke
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Datum/vrijeme | Smanjeni pregled | Dimenzije | Korisnik | Komentar | |
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trenutno | 11:33, 2 februar 2010 | ![]() | 824 × 346 (15 KB) | JBW | Removing "0.0" for correlation coefficient from horizontal line: here corr. coeff. is undefined. |
12:27, 18 mart 2008 | ![]() | 824 × 346 (20 KB) | Jtneill | {{Information |Description={{en|An example of the correlation of x and y for various distributions of (x,y) pairs. It was created by this Mathematica 6 code, which I wrote and release into the public domain: n = 2000; GraphicsArray[{ Table[makePlot[ |
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