Error : 'namespace:stats'没有出口‘sigma’这个对象 如何解决

library(car)
Error : 'namespace:stats'没有出口‘sigma’这个对象
In addition: Warning messages:
1: 程辑包‘car’是用R版本3.2.5 来建造的
2: replacing previous import by ‘stats::sigma’ when loading ‘pbkrtest’
Error: ‘car’程辑包或名字空间载入失败，



R 3.2.2版本，想安装car包，可以成功安装，加载时一直出错，开始提示没有pbkrtest，费了好大力气安装pbkrtest上去后，又出现这个错误，求高手解答

不会才是，car包没有什么特别的，以下是我用3.2.3安装的若是不可以，用devtools包里面的install函数先安装pbkrtest包，然后再安装car包，应该是可以的

1. > install.packages("car")
   
2. --- Please select a CRAN mirror for use in this session ---
   
3. trying URL 'http://mirrors.xmu.edu.cn/CRAN/bin/windows/contrib/3.2/car_2.1-2.zip'
   
4. Content type 'application/zip' length 1434548 bytes (1.4 MB)
   
5. downloaded 1.4 MB
   
6. 
   
7. package ‘car’ successfully unpacked and MD5 sums checked
   
8. 
   
9. The downloaded binary packages are in
   
10.         C:\Users\Administrator\AppData\Local\Temp\RtmpyeUkID\downloaded_packages
    
11. > library(car)
    
12. Warning message:
    
13. package ‘car’ was built under R version 3.2.5

复制代码

ywh19860616 发表于 2016-6-3 12:12
不会才是，car包没有什么特别的，以下是我用3.2.3安装的若是不可以，用devtools包里面的install函数先安装p ...

如何用devtools里面的install函数安装pbkrtest

11          
       
packageurl <- "https://cran.r-project.org/src/contrib/Archive/pbkrtest/pbkrtest_0.4-4.tar.gz" install.packages(packageurl, repos=NULL, type="source") Maybe you also need to update or reinstall package lm4 – Enrique Pérez Herrero Feb 27 at 12:44
3          
       
Just an FYI for future readers, to get @EnriquePérezHerrero 's installation code above to work, I had to install lme4 first; install.packages("lme4"), then run Enrique's code to install pbkrtest, and finally get to installing car. – coip Mar 9 at 17:45
1          
       
Thanks @EnriquePérezHerrero I also had to add argument method="curl" for this trick to work – oski86 Apr 25 at 13:27

以上内容摘自下面的链接，希望对你有用。

http://stackoverflow.com/questions/35207624/package-pbkrtest-is-not-available-for-r-version-3-2-2