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R 语言经典实例(原书第 2 版)
book

R 语言经典实例(原书第 2 版)

by J.D. Long, Paul Teetor
June 2020
Beginner to intermediate
522 pages
9h 6m
Chinese
China Machine Press
Content preview from R 语言经典实例(原书第 2 版)
18
1
1-3:保存工作空间选项
1.6.2 解决方案
按键盘上的 Esc 键,或单击 RStudio 中的 Session 菜单,并选择“ Interrupt R”。你也可
以在 R 的代码控制台窗口中,单击工具栏的“停止”按钮。
1.6.3 讨论
中断 R 意味着告诉 R 停止运行当前命令,但不从内存中删除变量或完全关闭 RStudio
也就是说,中断 R 可以使变量处于不确定状态,具体取决于计算进展的程度,因此需要
在中断后检查 R 的工作空间。
1.6.4 另请参阅
参见 1.5 节。
1.7 查看帮助文档
1.7.1 问题
查看 R 软件提供的帮助文档。
R
入门和获得帮助
19
1.7.2 解决方案
通过 help.start 函数打开帮助文档的内容列表。即,
help.start()
从中可以链接到所有已在本地安装的帮助文档。在 RStudio 中,帮助文档将显示在帮助
窗格中,默认情况下,该窗格位于屏幕的右侧。
RStudio 中,你还可以单击帮助(Help)→ R 帮助(R Help)以获取包含 R RStudio
帮助选项的列表。
1.7.3 讨论
R 软件的基础发布版包含了数千个页面的帮助文件,并且当安装某一添加包时,其中的
帮助文件也会自动安装到计算机中。
通过 help.start ...
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Publisher Resources

ISBN: 9787111656814