【发布时间】:2015-11-19 10:48:48
【问题描述】:
有人可以帮助我了解有效的 r 脚本代码如何导致 rStudio 中的 Markdown 文档挂起并对我必须终止会话和 IDE 的点无响应吗?也没有编织任何文件
背景:
- 在 2 台不同的机器上试过,运行最新的 rStudio 版本 Windows 7 和 Windows 10 上的 0.99.489 和 R 3.2.2(64 位)。
- 尝试使用 packrat 管理包
- 尝试从项目目录中加载形状文件
- 尝试从 spdep 项目下载中加载不同的形状文件
- 再次尝试重新安装软件包
R 脚本 获取所需的库并加载它们
#Install the GIS packages
install.packages("spdep",dependencies = TRUE)
install.packages("maptools",dependencies = TRUE)
#Load the libraries
library(spdep)
library(maptools)
这在 R 中有效(您需要在系统上为 shape 文件获取正确的位置)
#See where the library files are stored
.libPaths()
#Load the Eire shape file which came in spdep package using the readShapePoly function from maptools (needed to change the slashes from windows to those supported in R)
eireMap <- readShapePoly("C:R/3.2/spdep/etc/shapes/eire.shp"[1],ID="names", proj4string=CRS("+proj=utm +zone=30 +units=km"))
#Plot the map as there was no problem reading the shape file correctly in R script
plot(eireMap)
R Markdown
---
title: "GIS using R"
author: "Me"
date: "18 November 2015"
output: word_document
---
This is an R Markdown document of the R worksheet for GIS. Note that the `echo = FALSE` parameter was added to the code chunk to prevent printing of the R code contained in that snippet
```{r, echo=FALSE}
#Install the packages if not done already
install.packages("spdep",dependencies = TRUE)
install.packages("maptools",dependencies = TRUE)
```
Load the libraries
```{r, echo=FALSE}
library(spdep)
library(maptools)
```
See where the library files are stored
```{r}
.libPaths()
```
Try to Load the Eire shape file but it causes R Studio to hang and become unresponsive
```{r}
eireMap <- readShapePoly("C:R/win- library/3.2/spdep/etc/shapes/eire.shp"[1],ID="names", proj4string=CRS("+proj=utm +zone=30 +units=km"))
```
Can't plot the map because the system has hung by this stage
```{r}
plot(eireMap)
names(eireMap)
eireMap $names
```
【问题讨论】:
-
创建“eireMap”的代码行似乎不同,这是故意的吗?
-
FWIW
system.file("etc/shapes/eire.shp", package="spdep")是获取该 shapefile 的正确方法。另外,为什么每次编织时都强制重新安装软件包?
标签: r rstudio r-markdown