涡流加载问题

Question

下载的swirl包，在压缩中下载了它的所有文件，但是当运行一个命令在R中解压缩它时，它显示了下面的msg

install_course_zip("~/Downloads/swirl_courses-master.zip", multi=TRUE, which_course="R Programming")

解压缩错误(路径，list = TRUE)：无法打开zip文件'C:/Users/sony/Documents/Downloads/swirl_courses-master.zip‘

Answer 1

第一步(安装R之后，当然是启动R之后)：

> install.packages('swirl')
--- Please select a CRAN mirror for use in this session ---
trying URL ...Your selected CPAN mirror...
Content type 'application/x-gzip' length 98565 bytes (96 KB)
==================================================
downloaded 96 KB

* installing *source* package 'swirl' ...
** package 'swirl' successfully unpacked and MD5 sums checked
** R
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded
* DONE (swirl)

The downloaded source packages are in
    '/tmp/RtmpUfIWep/downloaded_packages'
Updating HTML index of packages in '.Library'
Making 'packages.html' ... done

请注意，在开始时，当被要求选择一个CPAN镜像时，应该出现一个图形菜单，在这里您必须单击- select。

然后加载库以使用其功能：

library(swirl)

最后，安装课程(注意:不要在此之前启动swirl() )：

> install_from_swirl("R Programming")
  |======================================================================| 100%
| Course installed successfully!

然后，开始这个课程：

> swirl()

| Welcome to swirl! Please sign in. If you've been here before, use the same
| name as you did then. If you are new, call yourself something unique.

What shall I call you? 

告诉我这些步骤中有哪些失败了。