【发布时间】:2016-03-16 17:49:39
【问题描述】:
在尝试为this SO question 寻找关于保存d3heatmap 生成的热图的解决方案的过程中,我在development version of knitr 中使用webshot 遇到了一个不相关的问题(HT:hrbrmstr)。
library(devtools)
devtools::install_github('yihui/knitr', build_vignettes = TRUE)
library(knitr)
安装并加载knitr的开发版后,我尝试运行以下.Rmd文件:
---
title: "Untitled"
output: pdf_document
---
```{r}
library(d3heatmap)
d3heatmap(mtcars, scale = "column", colors = "Spectral")
```
系统提示我安装 phantomjs:
webshot::install_phantomjs()
phantomjs.exe has been installed to /Users/USERNAME/Library/Application Support/PhantomJS
我尝试再次运行.Rmd 文件,但出现此错误:
sh: ~/Library/Application Support/PhantomJS/phantomjs: No such file or directory
Quitting from lines 7-9 (test.Rmd)
Error in (function (url = NULL, file = "webshot.png", vwidth = 992, vheight = 744, :
webshot.js returned failure value: 127
Calls: <Anonymous> ... html_screenshot -> in_dir -> do.call -> <Anonymous>
Execution halted
我相信错误告诉我 R 找不到 phantomjs.exe,但我看到它位于指定的路径中。我知道这尖叫着愚蠢的用户错误。
【问题讨论】: