如何解决载入swirl包时出来的non-numeric argument to binary operator错误

最新推荐文章于 2023-08-25 00:23:05 发布

wangishero

最新推荐文章于 2023-08-25 00:23:05 发布

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分类专栏： R——数据分析

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本文介绍了在使用R语言载入swirl包时遇到'non-numeric argument to binary operator'错误的解决过程。尝试重新安装包并未解决问题，参考Stack Overflow上的解决方案也未能直接应用。

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首先是尝试重新安装swirl中对应的包：

> install_from_swirl("Statistical Inference")
Error in curl::curl_fetch_memory(url, handle = handle) : 
  Problem with the SSL CA cert (path? access rights?)
> library(RCurl)
载入需要的程辑包：bitops

载入程辑包：‘RCurl’

The following object is masked from ‘package:swirl’:

    reset

> library(httr)
Warning message:
程辑包‘httr’是用R版本3.2.3 来建造的 
> set_config( config( ssl_verifypeer = 0L ) )
> install_from_swirl("Statistical Inference")
  |=============================================================================================================| 100%

| Course installed successfully!

> 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.

解决了安装包的问题（安装可参考：——————————）

在尝试提交的过程中又出现了之前出现过的提示，可见问题并没有完全解决：


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? test

| Would you like to continue with one of these lessons?

1: Statistical Inference Power
2: No. Let me start something new.

Selection: 1

| Attempting to load lesson dependencies...

| Package ‘reshape2’ loaded correctly!

| Package ‘ggplot2’ loaded correctly!

Error in z * sigma : non-numeric argument to binary operator

| Leaving swirl now. Type swirl() to resume.

似乎没有什么好的办法（有在Stack Overflow上查到相关的问答，但是好像没法直接拿过来用）。

参考资料：

http://errorh.com/error-in-x-2-non-numeric-argument-to-binary-operator/