我正在尝试建立贝叶斯网络模型。但是我无法安装合适的软件包。尝试过gRain, bnlearn and Rgraphviz用于绘图。我在 R 2.15 和 3.2 中尝试过
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)
该型号的其他信息
1) 变量数量 - 17
2) 变量类型-离散/连续
套餐graph, RBGL and Rgraphviz不在 CRAN 上，但在生物导体 http://www.bioconductor.org/.
要安装这些软件包，请执行
if (!requireNamespace("BiocManager", quietly = TRUE))
install.packages("BiocManager")
BiocManager::install(c("graph", "RBGL", "Rgraphviz"))
然后以通常的方式安装来自 CRAN 的软件包：
install.packages("gRain", dependencies=TRUE)
另请参阅gRain安装说明 http://people.math.aau.dk/~sorenh/software/gR/.
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