无法编译Rmarkdown文档 [英] Cannot compile Rmarkdown document

问题描述

我很难让我的R markdown文档得到编译和执行.在分析中，我进行了单向，双向ANOVA和ANCOVA分析以及许多绘图.

I have a very difficult time to get my R markdown document compiled and execute. I have one-way, two-way ANOVA and ANCOVA analyses in the analysis along with many plots.

这是尚未成功执行的第一个R代码块.

Here is the first R code chunk yet to be successfully executed.

{r, echo=FALSE}

install.packages("rmarkdown")
library(rmarkdown)

install.packages("knitr")
library(knitr)

install.packages("ggplot2")

install.packages("car")
library(car)

install.packages("pastecs")
library(pastecs)

install.packages("compute.es")
library(compute.es)

install.packes("multcomp")
library(multcopm)

install.packes("WRS2")
library(WRS2)

install.packages("gmodels")
library(gmodels)

install.packes("MASS")
library(MASS)

从30-60行退出(PPC.Rmd)contrib.url(repos， 源"):尝试在不设置镜像的情况下使用CRAN调用: ... withVisible-> eval-> eval-> install.packages-> contrib.url

Quitting from lines 30-60 (PPC.Rmd) Error in contrib.url(repos, "source") : trying to use CRAN without setting a mirror Calls: ... withVisible -> eval -> eval -> install.packages -> contrib.url

执行停止

推荐答案

我通常会携带一些小功能

I usually carry small function

check_and_install <- function( packname ) { # given package name, check installation, install if not found
    if ( packname %in% rownames(installed.packages()) == FALSE ) {
        install.packages( packname )
    }
}

所以在Rmd开始时我就做

so at the beginning of the Rmd i do

check_and_install("ggplot2")
library(ggplot2)

....

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