Rd中的\ link [grDevices] {win.metafile}:如何从UNIX环境传递R CMD检查警告?

时间:2014-05-06 23:34:31

标签: windows r unix roxygen2 rd

我在UNIX环境中工作并创建一个包,其中实用程序函数Rd需要链接到grDevices::win.metafile帮助页面(特定于Windows)。我的.R文件(使用roxygen2)是

#' Open a vectorial device file in a portable way.                              
#'                                                                              
#'                                                                              
#' Portable function which choose what (vectorial) device to open looking at    
#' the system.                                                                  
#'                                                                              
#'                                                                              
#' @usage graph(file, width, height, ...)                                       
#' @param file path without extension                                           
#' @param width width in inches                                                 
#' @param height height in inches                                               
#' @param ... other arguments passed to \code{\link{pdf}} or                    
#' \code{\link[grDevices]{win.metafile}}                                        
#' @return Values returned by pdf or win.metafile?                              
#' @keywords pdf win.metafile vectorial graph                                   
#' @export graph                                                                
graph <- function(file="", width = 7,
                  height = 7,  ...) {

    if (Sys.info()["sysname"]=="Linux") {
        path <- paste(file, "pdf" ,sep=".")
        pdf(file=path, width = width, height = height, ...)
    } else if (Sys.info()["sysname"]=="Windows") {
        path <- paste(file, "emf" ,sep=".")
        win.metafile(filename=path, width = width, height = height, ...)
    }
}

但是,当转到R CMD check时,会发出警告:

Missing link or links in documentation object 'graph.Rd':
  ‘[grDevices]{win.metafile}’
See the information in section 'Cross-references' of the 'Writing R
Extensions' manual.

我已经查看了编写R扩展程序交叉引用,但唯一的替代方法似乎是[grDevices:win.metafile]{win.metafile},它给出了相同的结果(老实说,我并没有完全理解它的含义)。

提示&#34;闭嘴&#34;检查?谢谢,卢卡

0 个答案:

没有答案