readOGR() cannot open file

Question

wmap <- readOGR(dsn=\"~/R/funwithR/data/ne_110m_land\", layer=\"ne_110m_land\")

This code is not loading the shape file and error is generated a

Answer 1

For me, the command returned the Cannot open layer error when I included the dsn and layer tags.

So when I included it all just as readOGR('~/R/funwithR/data/ne_110m_land/ne_110m_land.shp') it worked.

Note that my file was a gjson, so I've only seen this with readOGR('~/R/funwithR/data/ne_110m_land/ne_110m_land.gjson')

Answer 2

I had the same error. To read in a shapefile, you need to have three files in your folder: the .shp, .dbf and .shx files.

Answer 3

As I commented in other post (Error when opening shapefile), using file.choose() and selecting manually will help in the case one file selection is needed. Apparently is related with NaturalEarth shapefiles

Answer 4

Here's what worked for me (with a real example)

require(rgdal)
shape <- readOGR(dsn = "1259030001_ste11aaust_shape/STE11aAust.shp", layer = "STE11aAust")

The exact data is available here (download the .zip file called 'State and Territory ASGC Ed 2011 Digital Boundaries in MapInfo Interchange Format')

Answer 5

the syntax: library(raster) s <- shapefile("~/R/funwithR/data/ne_110m_land/ne_110m_land.shp") worked perfectly! todah rabah!

Answer 6

You could have shown that you have the right path with:

list.files('~/R/funwithR/data/ne_110m_land', pattern='\\.shp$')
file.exists('~/R/funwithR/data/ne_110m_land/ne_110m_land.shp')

perhaps try:

readOGR(dsn=path.expand("~/R/funwithR/data/ne_110m_land"), layer="ne_110m_land")

or a simpler alternative that is wrapped around that:

library(raster)
s <- shapefile("~/R/funwithR/data/ne_110m_land/ne_110m_land.shp")