[R-sig-Geo] issue with readOGR

[Abdoulaye Sarr]

Thank Roger, that solve the issue.

Best regards,
as

On Sun, Nov 10, 2019 at 1:34 PM Roger Bivand <Roger.Bivand using nhh.no> wrote:

> On Sat, 9 Nov 2019, Abdoulaye Sarr wrote:
>
> > Platform is osx.
> >
> > Thanks
> >
> > On Sat, Nov 9, 2019 at 6:11 PM Abdoulaye Sarr <abdoulayesar using 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 using 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 using 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 using 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 using 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 using nhh.no
> https://orcid.org/0000-0003-2392-6140
> https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en
>

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