Question

我正在尝试构建一个贝叶斯网络模型。但是我无法安装合适的包。尝试绘制gRain，bnlearn和Rgraphviz。我试过R 2.15和3.2

以下是错误消息：

library(gRain)
Loading required package: gRbase
Loading required package: graph
Error: package ‘graph’ could not be loaded
In addition: Warning message:
In library(pkg, character.only = TRUE, logical.return = TRUE, lib.loc = lib.loc) :
  there is no package called ‘graph’

> install.packages("graph")
Warning message:
package ‘graph’ is not available (for R version 2.15.3)

R 3.2.1相同

> install.packages("graph")
(as ‘lib’ is unspecified)
Warning message:
package ‘graph’ is not available (for R version 3.2.1) 


> install.packages("Rgraphviz")
(as ‘lib’ is unspecified)
--- Please select a CRAN mirror for use in this session ---
Warning messages:
1: In open.connection(con, "r") : unable to resolve 'cran.r-project.org'
2: package ‘Rgraphviz’ is not available (for R version 3.2.1)

> install.packages("Rgraphviz")
(as ‘lib’ is unspecified)
Warning message:
package ‘Rgraphviz’ is not available (for R version 2.15.3)

模型的其他信息

1）没有变量 - 17 2）变量类型 - 离散/连续

Answer 1

包graph，RBGL和Rgraphviz不在CRAN上，而在bioconductor上。

要安装这些软件包，请执行

source("http://bioconductor.org/biocLite.R")
biocLite(c("graph", "RBGL", "Rgraphviz"))

然后以通常的方式从CRAN安装软件包：

install.packages("gRain", dependencies=TRUE)

另请参阅gRain installation instructions。

Answer 2

对于R版本3.5或更高版本，可以使用 BiocManager 安装 Bioconductor 软件包。
请参阅：https://bioconductor.org/install。
我使用以下代码安装了它们：

if (!requireNamespace("BiocManager", quietly = TRUE))
    install.packages("BiocManager")
BiocManager::install(version = "3.10")
BiocManager::install(c("gRbase", "RBGL", "Rgraphviz", "gRain"))

带有R的贝叶斯网络

模型的其他信息

2 个答案: