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现代统计图形 - 科学网—博客

现代统计图形 - 科学网—博客

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5.23 星状图 117<br />

1 > # 预设调色板,stars()默认用整数来表示颜色<br />

2 > palette(rainbow(12, s = 0.6, v = 0.75))<br />

3 > stars(mtcars[, 1:7], len = 0.8, key.loc = c(14, 1.5),<br />

4 + ncol = 7, main = "", draw.segments = TRUE)<br />

5 > # 恢复默认调色板<br />

6 > palette("default")<br />

Mazda RX4 Wag Hornet 4 Drive<br />

Valiant<br />

Mazda RX4<br />

Datsun 710 Hornet Sportabout<br />

Merc 240D<br />

Merc 230<br />

Merc 280<br />

Lincoln Continental Fiat 128<br />

Cadillac Fleetwood Chrysler Imperial<br />

Merc 450SE<br />

Merc 280C<br />

Duster 360<br />

Merc 450SLC<br />

Merc 450SL<br />

Toyota Corolla<br />

Honda Civic Toyota Corona<br />

Dodge Challenger Camaro Z28<br />

Fiat X1-9<br />

Lotus Europa<br />

AMC Javelin Pontiac Firebird Porsche 914-2<br />

Ferrari Dino<br />

Volvo 142E<br />

Ford Pantera L Maserati Bora<br />

disp<br />

hp<br />

drat<br />

图 5.30: Motor Trend杂志1974年汽车数据的星状图<br />

cyl<br />

mpg<br />

qsec<br />

wt

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