issue with readOGR
On Sat, 9 Nov 2019, Abdoulaye Sarr wrote:
Platform is osx. Thanks On Sat, Nov 9, 2019 at 6:11 PM Abdoulaye Sarr <abdoulayesar at gmail.com> wrote:
output from list.files:
"dhaka_div.shx" "dhaka_gazipur.cpg"
"dhaka_gazipur.dbf" "dhaka_gazipur.prj" "dhaka_gazipur.qpj"
"dhaka_gazipur.shp"
"dhaka_gazipur.shx" "dhaka.dbf" "dhaka.prj"
"dhaka.shp"
"dhaka.shx" "indicator.csv" "r_val.csv"
From this we see that "indicator.csv" is not (immediately) a file that has
an appropriate driver (it needs a *.vrt to say which columns are which, see https://gdal.org/drivers/vector/csv.html). Valid layers should be "dhaka" and "dhaka_gazipur", but not "dhaka_div", for which only the *.shx is shown. Try ogrListLayers(path.expand("/Volumes/DS2S/R_QGIS_codes//Data")) to try to detect valid layers. If you really meant "indicators", use paste0("CSV:", file.path(path.expand("/Volumes/DS2S/R_QGIS_codes//Data"), "indicators.csv")) as per the GDAL vector driver help page. Roger
On Sat, Nov 9, 2019 at 5:07 PM Roger Bivand <Roger.Bivand at nhh.no> wrote:
On Fri, 8 Nov 2019, Abdoulaye Sarr wrote:
I am trying to read a shapefile using readOGR but keep getting error
messages:
map =
readOGR(dsn=path.expand("/Volumes/DS2S/R_QGIS_codes//Data"),"indicator")
Error in ogrInfo(dsn = dsn, layer = layer, encoding = encoding,
use_iconv =
use_iconv, : Cannot open layer
What is "/Volumes/DS2S/R_QGIS_codes//Data"? If a network drive, some OGR
drivers are known not to work with them (or that used to be the case).
Which OS/Platform is this? Is the repeated "//" correct? Can you see the
file running list.files("/Volumes/DS2S/R_QGIS_codes//Data") ?
Roger
What could be causing the problem? sp 1.3-2
Thanks
as
[[alternative HTML version deleted]]
_______________________________________________ R-sig-Geo mailing list R-sig-Geo at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
-- Roger Bivand Department of Economics, Norwegian School of Economics, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; e-mail: Roger.Bivand at nhh.no https://orcid.org/0000-0003-2392-6140 https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en
[[alternative HTML version deleted]]
_______________________________________________ R-sig-Geo mailing list R-sig-Geo at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
Roger Bivand Department of Economics, Norwegian School of Economics, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; e-mail: Roger.Bivand at nhh.no https://orcid.org/0000-0003-2392-6140 https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en