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cmsy_install_jags(): 下载并打开JAGS安装程序

Source: vignettes/articles/zh/reference/cmsy_install_jags.Rmd
cmsy_install_jags.Rmd

英文原页：cmsy_install_jags()

说明

本函数下载与操作系统和R版本匹配的JAGS安装程序（见cmsy_jags_versions()和cmsy_download_jags()），核对文件大小和校验值，然后打开它：Windows上是.exe安装程序，macOS上是.pkg安装程序。在Linux上则下载源代码，并说明如何用包管理器或从源代码安装JAGS。如果在包的inst/jags/文件夹（安装后为jags/）中放有安装程序，则直接使用该文件，不再下载。

English

This function downloads the JAGS installer that matches the operating system and R version (see cmsy_jags_versions() and cmsy_download_jags()), checks its size and checksums, and opens it: the .exe installer on Windows and the .pkg installer on macOS. On Linux it downloads the source code and shows how to install JAGS with the package manager or from source. An installer placed in the package folder inst/jags/ (installed as jags/) is used instead of downloading.

用法 

cmsy_install_jags(
  version = "recommended",
  os = "auto",
  open = TRUE,
  data_dir = fao_data_dir(),
  silent = fao_setting("silent")
)

参数

version
JAGS版本：“recommended”（默认）、“latest”或版本号。
English The JAGS version: “recommended” (default), “latest” or a version number.
os
采用哪个操作系统的设置：“auto”（默认，自动检测）、“windows”、“macos”或”linux”。
English The operating system whose settings are used: “auto” (default, detect it), “windows”, “macos” or “linux”.
open
逻辑值。为TRUE（默认）时打开安装程序。
English A logical value. If TRUE (default), the installer is opened.
data_dir
下载文件的保存目录。默认为fao_data_dir()。
English The directory where downloads are kept. Default is fao_data_dir().
silent
逻辑值。为TRUE时不输出汇总信息。默认为FALSE，或fao_settings(silent = )设置的值。
English A logical value. If TRUE, no summary is printed. Default is FALSE, or the value set with fao_settings(silent = ).

返回值

以不可见方式返回所下载安装程序的路径。

English

Invisibly, the path of the downloaded installer.

参考文献

Plummer, M. (2003). JAGS: A program for analysis of Bayesian graphical models using Gibbs sampling. Proceedings of the 3rd International Workshop on Distributed Statistical Computing (DSC 2003), Vienna. https://mcmc-jags.sourceforge.io/

示例 

# Download the installer for this system (size and checksum are checked) and open it
cmsy_install_jags()

# Only download it, e.g. to install it later
path <- cmsy_install_jags(open = FALSE)

# Download the Windows installer on a Mac, e.g. for a colleague
cmsy_install_jags(os = "windows", open = FALSE)