[问题类型]: 程式谘询(我想用R 做某件事情，但是我不知道要怎麽用R 写出来) [软体熟悉度]: 入门(写过其他程式，只是对语法不熟悉) [问题叙述]: 如题，我现在遇到两个困难。 一、OpenMP 想要安装套件 data.table，但此套件需要 OpenMP。 参考网站 https://mac.r-project.org/openmp/ 给出的提示， 我在 terminal 输入指令 curl -O https://mac.r-project.org/openmp/openmp-11.0.1-darwin20-Release.tar.gz sudo tar fvx openmp-11.0.1-darwin20-Release.tar.gz -C / 输入第二个指令後，却得到以下的错误资讯，似乎是没有解压缩成功？ x usr/: Can't restore time x usr/local/: Can't restore time x usr/local/include/ x usr/local/lib/ x usr/local/lib/libomp.dylib x usr/local/include/ompt.h x usr/local/include/omp.h x usr/local/include/omp-tools.h tar: Error exit delayed from previous errors. 此步骤失败，导致不晓得怎麽安装下去了QQ 二、stringi 因为平常有使用 R Markdown 与 bookdown 的习惯，因此需要此套件。 更新 R 为 4.1 版以後，在 Installing Packages 之处，输入 stringi 却会报错，如： > install.packages("stringi") There is a binary version available but the source version is later: binary source needs_compilation stringi 1.6.2 1.7.3 TRUE Do you want to install from sources the package which needs compilation? (Yes/no/cancel) yes installing the source package ‘stringi’ trying URL 'https://cran.rstudio.com/src/contrib/stringi_1.7.3.tar.gz' Content type 'application/x-gzip' length 7599615 bytes (7.2 MB) ================================================== downloaded 7.2 MB * installing *source* package ‘stringi’ ... ** package ‘stringi’ successfully unpacked and MD5 sums checked ** using staged installation checking for R_HOME... /Library/Frameworks/R.framework/Resources checking for R... /Library/Frameworks/R.framework/Resources/bin/R checking for endianness... little checking for R >= 3.1.0 for C++11 use... yes checking for R < 3.4.0 for CXX1X flag use... no checking for cat... /bin/cat checking for local ICUDT_DIR... icu69/data checking for gcc... /usr/local/gfortran/bin/gcc -fopenmp checking whether the C compiler works... no configure: error: in `/private/var/folders/r0/thwpnv9d5bjc5gvqkwdg3_2w0000gn/T/Rtmpfh2bgB/R.INSTALL4ac22864b91a/stringi': configure: error: C compiler cannot create executables See `config.log' for more details ERROR: configuration failed for package ‘stringi’ * removing ‘ /Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/library/stringi’ Warning in install.packages : installation of package ‘stringi’ had non-zero exit status The downloaded source packages are in ‘ /private/var/folders/r0/thwpnv9d5bjc5gvqkwdg3_2w0000gn/T/RtmpMoOgNU/downloaded_packages ’ [环境叙述] R version 4.1.0 Patched (2021-07-16 r80639) Platform: aarch64-apple-darwin20 (64-bit) Running under: macOS Big Sur 11.1 Matrix products: default LAPACK: /Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/lib/libRlapack.dylib locale: [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] compiler_4.1.0 htmltools_0.5.1.1 tools_4.1.0 yaml_2.2.1 rmarkdown_2.9 [6] knitr_1.33 xfun_0.24 digest_0.6.27 rlang_0.4.11 evaluate_0.14 感谢各位板友！ --

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