link for the .shp file dataset
我想从R工具中读取.shp文件,使用以下脚本:
>scot_LL<-readOGR("C:/Documents and Settings/Admin/Desktop/scotlip/lip cancer/New Scot/scot.shp","scot"),
但是当我运行脚本时,我收到以下错误:
>Error in file(paste(DSN, .Platform$file.sep, layer, ".dbf", sep = ""), <br/>:
cannot open the connection<br/>:
In addition: Warning message:<br/>:
In file(paste(DSN, .Platform$file.sep, layer, ".dbf", sep = ""), :<br/>:
cannot open file 'C:/Documents and Settings/Admin/Desktop/scotlip/lip cancer/New Scot/scot.dbf': No such file or directory
你能帮我吗?
答案 0 :(得分:3)
以下是使用maptools
包的解决方案:
library(maptools)
scot_mp <- readShapeSpatial('C:/Documents and Settings/Admin/Desktop/scotlip/lip cancer/New Scot/scot.shp')
proj4string(scot_mp) <- "+proj=longlat +datum=WGS84" # specify projection
plot(scot_mp)
结果:
修改强>
使用rgdal
包的解决方案:
scot_mp <- readOGR('C:/Documents and Settings/Admin/Desktop/scotlip/lip cancer/New Scot', 'scot')
第一个参数不一定要包含shape文件的名称,但主要问题似乎是至少dbf
文件不在你的文件夹中,所有这些都是必需的并且应该是相同的文件夹:scot.shp, scot.dbf, scot.shx
。之后,它继续作为另一个解决方案:
proj4string(scot_mp) <- "+proj=longlat +datum=WGS84"
plot(scot_mp)