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5 results for “from:Duncan McPherson”

install rgdal to query postgis database
Duncan McPherson · Jul 28, 2013 · r-sig-geo

Sorry, I forgot to add that I have already tried: host=localhost port=5432 password='' and all combinations with and without these and with single quotes and double quotes. Also, all of QGis, Terminal and PGAdminIII can connect to the...

install rgdal to query postgis database
Duncan McPherson · Jul 28, 2013 · r-sig-geo

Thanks for your suggestion. The user postgres has a password already (see below for detail). I tried as you suggested: > dsn="PG:dbname=england_health user=postgres password=[password]" > ogrListLayers(dsn) Error in ogrListLayers(dsn) : Cannot open data source and...

multiple geometry columns in a table reading from PostGIS to rgdal
Duncan McPherson · Feb 8, 2015 · r-sig-geo

Dear list Has the syntax changed for specifying which geometry column to import in rgdal when built against GDAL 1.11 when there are multiple geometry columns in a single table? RFC41 (http://trac.osgeo.org/gdal/wiki/rfc41_multiple...

install rgdal to query postgis database
Duncan McPherson · Jul 27, 2013 · r-sig-geo

I have installed postgres, postgis, gdal 'complete' all from kyngchaos. Then I loaded a map of England, and have been able to do manipulations of that with SQL statements. I can also create maps with QGis by loading Postgis layers...

install rgdal to query postgis database
Duncan McPherson · Aug 4, 2013 · r-sig-geo

An update that may shed some light on my issue: Mysteriously it started working, I was able to import some spatial tables form PostGIS to R, and plot them, and I was about to thank the list and close the...

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