m0_46318429: install.packages("D:/rlang_1.0.4.tar.gz", repos = NULL) WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding: https://cran.rstudio.com/bin/windows/Rtools/ * installing *source* package 'rlang' ... ** 成功将'rlang'程序包解包并MD5和检查 ** using staged installation ** libs Warning in system(cmd) : 'make' not found ERROR: compilation failed for package 'rlang' * removing 'E:/R/R-4.0.2/library/rlang' Warning in install.packages : installation of package ‘D:/rlang_1.0.4.tar.gz’ had non-zero exit status 您好，我这里安装的时候他没有给我是否需要编译的选项

m0_46318429: install.packages("D:/rlang_1.0.4.tar.gz", repos = NULL) WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding: https://cran.rstudio.com/bin/windows/Rtools/ * installing *source* package 'rlang' ... ** 成功将'rlang'程序包解包并MD5和检查 ** using staged installation ** libs Warning in system(cmd) : 'make' not found ERROR: compilation failed for package 'rlang' * removing 'E:/R/R-4.0.2/library/rlang' Warning in install.packages : installation of package ‘D:/rlang_1.0.4.tar.gz’ had non-zero exit status 您好，我这里安装的时候他没有给我是否需要编译的选项

kiddo_liu: 输出的结果在哪看啊

weixin_57407318: 俺也求一个具体案例不知道怎么赋值

m0_69388807: 你好，这个x0要如何赋值