如何解决R的问题： package ‘survcomp’ is not available for this version of R
我在使用survcomp时，结果弄不下来，系统提示如下：
> install.packages("survcomp")
Warning in install.packages :
package ‘survcomp’ is not available for this version of R
A version of this package for your version of R might be available elsewhere,
see the ideas at
https://cran.r-project.org/doc/manuals/r-patched/R-admin.html#Installing-packages我顺着给出的链接进去查看问题，但好像也解决不了，百度的结果是可以直接下载源代码，但我也没搜到survcomp的源代码安装包，这个办法只好作罢。
但，有个大佬建议从BiocManager入手下载，成功结局问题，我的过程如下（包含R的结果展示）：
View(R.version) #首先看下我的R版本，似乎还比较新的，R4.3.2，据说新版本是没法直接下载survcomp的
#然后输入以下两个命令，如需更改，直接复制跑
if (!require("BiocManager", quietly = TRUE))
+ install.packages("BiocManager")
BiocManager::install("survcomp")
#运动结果如下：下载BiocManager成功
试开URL’https://mirrors.tuna.tsinghua.edu.cn/CRAN/bin/windows/contrib/4.3/BiocManager_1.30.22.zip'
Content type 'application/zip' length 495739 bytes (484 KB)
downloaded 484 KB
程序包‘BiocManager’打开成功，MD5和检查也通过
下载的二进制程序包在
C:\Users\Administrator\AppData\Local\Temp\RXXXXXXXXXXXXXXX ~~~~~~~~
'getOption("repos")' replaces Bioconductor standard repositories, see
'help("repositories", package = "BiocManager")' for details.
Replacement repositories:
CRAN: https://mirrors.tuna.tsinghua.edu.cn/CRAN/
Bioconductor version 3.18 (BiocManager 1.30.22), R 4.3.2 (2023-10-31 ucrt)
Installing package(s) 'BiocVersion', 'survcomp'
还安装相依关系‘SuppDists’, ‘survivalROC’, ‘bootstrap’, ‘rmeta’
试开URL’https://mirrors.tuna.tsinghua.edu.cn/CRAN/bin/windows/contrib/4.3/SuppDists_1.1-9.7.zip'
Content type 'application/zip' length 297057 bytes (290 KB)
downloaded 290 KB
试开URL’https://mirrors.tuna.tsinghua.edu.cn/CRAN/bin/windows/contrib/4.3/survivalROC_1.0.3.1.zip'
Content type 'application/zip' length 47098 bytes (45 KB)
downloaded 45 KB
试开URL’https://mirrors.tuna.tsinghua.edu.cn/CRAN/bin/windows/contrib/4.3/bootstrap_2019.6.zip'
Content type 'application/zip' length 117223 bytes (114 KB)
downloaded 114 KB
试开URL’https://mirrors.tuna.tsinghua.edu.cn/CRAN/bin/windows/contrib/4.3/rmeta_3.0.zip'
Content type 'application/zip' length 111807 bytes (109 KB)
downloaded 109 KB
试开URL’https://bioconductor.org/packages/3.18/bioc/bin/windows/contrib/4.3/BiocVersion_3.18.1.zip'
Content type 'application/zip' length 8320 bytes
downloaded 8320 bytes
试开URL’https://bioconductor.org/packages/3.18/bioc/bin/windows/contrib/4.3/survcomp_1.52.0.zip'
Content type 'application/zip' length 1125909 bytes (1.1 MB)
downloaded 1.1 MB
程序包‘SuppDists’打开成功，MD5和检查也通过
程序包‘survivalROC’打开成功，MD5和检查也通过
程序包‘bootstrap’打开成功，MD5和检查也通过
程序包‘rmeta’打开成功，MD5和检查也通过
程序包‘BiocVersion’打开成功，MD5和检查也通过
程序包‘survcomp’打开成功，MD5和检查也通过
下载的二进制程序包在
C:\Users\Administrator\AppData\Local\Temp\RtmpGaxSBr\downloaded_packages里
Old packages: 'checkmate', 'cli', 'cluster', 'cowplot', 'cpp11', 'data.table', 'digest',
'e1071', 'emmeans', 'fansi', 'foreign', 'future', 'future.apply', 'ggrepel', 'glue',
'htmlwidgets', 'httpuv', 'jsonlite', 'kableExtra', 'lattice', 'lavaan', 'MASS',
'Matrix', 'mgcv', 'nlme', 'patchwork', 'pkgload', 'ps', 'Rcpp', 'readr', 'recipes',
'rJava', 'rlang', 'rpart', 'sandwich', 'sass', 'stringi', 'tidyr', 'timechange',
'timeDate', 'uuid', 'vcd', 'vctrs', 'withr', 'yaml', 'zip'
Update all/some/none? [a/s/n]:
n #最后系统提示我是不是需要更新R的包，我选择了n
library(survcomp) #选择n之后，我开始加载survcomp包了
#载入需要的程辑包：survival
#载入需要的程辑包：prodlim 系统提示我要加载这两个依赖包
#于是新的顺序是这样：
library(survival)
library(prodlim)
library(survcomp)
#完成了
总是就是两句命令：
if (!require("BiocManager", quietly = TRUE))
install.packages("BiocManager")
BiocManager::install("survcomp")其他的结果根据系统提示来，没问题的！ ？