该文件包含以下代码fileConn<-file("ch7.txt","w+")代码在windows R中运行得很好,但是当我试图从Linux运行该文件时我在我的Linux机器上运行了R,并且输入了下面的命令。> source('R_linux.R')Error in file("ch7.txt", "w+") : cannot open the connec
使用Pycharm,我正在尝试安装Pygall,它需要lxml和cairosvg。我创建了一个'requirements.txt‘文件来列出模块:pip install lxml0:425: execution error: The directory '/Users/romain/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the p