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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

现代统计图形 - 科学网—博客

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64 第五章 图库<br />

1 > stem(islands)<br />

The decimal point is 3 digit(s) to the right of the |<br />

0 | 00000000000000000000000000000111111222338<br />

2 | 07<br />

4 | 5<br />

6 | 8<br />

8 | 4<br />

10 | 5<br />

12 |<br />

14 |<br />

16 | 0<br />

1 > stem(islands, scale = 2)<br />

The decimal point is 3 digit(s) to the right of the |<br />

0 | 00000000000000000000000000000111111222338<br />

1 |<br />

2 |<br />

3 | 07<br />

4 |<br />

5 | 5<br />

6 | 8<br />

7 |<br />

8 |<br />

9 | 4<br />

10 |<br />

11 | 5<br />

12 |<br />

13 |<br />

14 |<br />

15 |<br />

16 |<br />

17 | 0<br />

1 > # 或者尝试stem(islands, width = 20)<br />

2 > # 看看茎叶图的不同效果<br />

图 5.3: 本图展示了世界上主要的48块大陆面积的分布状况,可以明显看出,<br />

这些面积数据是严重右偏的,意即:少数陆地块的面积非常大,而大多数<br />

陆地块的面积相对来说都很小。事实上,主要是七大洲的大陆块面积非常<br />

大,而其它岛屿诸如海南岛、帝汶岛、九洲岛等面积都相对较小。

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