现代统计图形 - 科学网—博客
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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B.4 分类变量散点图示 173<br />
1 > par(mfrow = c(2, 2), mar = c(2.5, 3, 2, 0.1), pch = 20,<br />
2 + mgp = c(1.5, 0.5, 0), cex.main = 1)<br />
3 > x = sample(rep(1:2, c(12, 18)))<br />
4 > y = rep(1:2, c(18, 12))<br />
5 > plot(x, y, main = "(1) 原始散点图", xlim = c(0.8,<br />
6 + 2.2), ylim = c(0.8, 2.2))<br />
7 > plot(jitter(x), jitter(y), main = "(2) 随机打散后的散点图")<br />
8 > points(x, y, cex = 3)<br />
9 > sunflowerplot(x, y, main = "(3) 向日葵散点图",<br />
10 + xlim = c(0.8, 2.2), ylim = c(0.8, 2.2))<br />
11 > mosaicplot(table(x, y), main = "(4) 马塞克图")<br />
y<br />
0.8 1.2 1.6 2.0<br />
y<br />
0.8 1.2 1.6 2.0<br />
(1) 原始散点图<br />
0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2<br />
x<br />
(3) 向日葵散点图<br />
0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2<br />
x<br />
jitter(y)<br />
0.8 1.2 1.6 2.0<br />
y<br />
(2) 随机打散后的散点图<br />
0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2<br />
jitter(x)<br />
(4) 马塞克图<br />
1 2<br />
图 B.6: 分类变量的散点图示方法示例:原始散点图、打散方法、向日葵散<br />
点图和马赛克图。<br />
1<br />
2<br />
x