我试图调用knit
,告诉我它需要rmarkdown
的更新版本,需要包stringi
。
安装stringi
时出现以下错误:
> install.packages("stringi")
Installing package into ‘C:/Users/matan/Documents/R/win-library/3.4’
(as ‘lib’ is unspecified)
There is a binary version available but the source version is later:
binary source needs_compilation
stringi 1.1.5 1.1.6 TRUE
Binaries will be installed
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.4/stringi_1.1.5.zip'
Warning in install.packages :
cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/3.4/stringi_1.1.5.zip': HTTP status was '404 Not Found'
Error in download.file(url, destfile, method, mode = "wb", ...) :
cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/3.4/stringi_1.1.5.zip'
Warning in install.packages :
download of package ‘stringi’ failed
我该如何解决这个问题,以便最终能knit
.RMD
我的https://cran.r-project.org/web/packages/stringi/index.html
?{/ p>
修改(解决方案):
> install.packages(".../Downloads/stringi_1.1.6.zip", repos = NULL, type = "source")
下载Windows二进制文件(r-release:stringi_1.1.6.zip) #include <iostream>
using namespace std;
int main() {
char Name[5];
Name = "Luke";
cout<<"Character 0 :"<<Name[0]<<endl;
cout<<"Character 1 :"<<Name[1]<<endl;
cout<<"Character 2 :"<<Name[2]<<endl;
cout<<"Character 3 :"<<Name[3]<<endl;
cout<<"Character 4 :"<<Name[4]<<endl;
return 0;
}
答案 0 :(得分:10)
最简单的解决方案是从here下载 .zip 或 .tar.gz 文件,然后在RStudio 工具中选择安装它 - &GT; 安装软件包...... ,将安装从:更改为软件包存档文件,然后选择下载的文件。