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<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext">I’ve been playing with getting info on and opening geodatabases. I was pleasantly surprised to find that rgdal could examine and open layers from them. But
I wonder if it can open non-spatial objects in them? Or if there is any other R way to do that?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext">I have a geodatabase that looks like this:<o:p></o:p></span></p>
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<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console";color:blue">> ogrListLayers( "D:USvegNRIS.gdb" )
<o:p></o:p></span></p>
<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console"">[1] "NRIS_VegCharacterizations" "NRIS_VegDisturbances" "NRIS_VegGisCalcs" "NRIS_VegPolyLinks"
<o:p></o:p></span></p>
<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console"">[5] "NRIS_VegSubpopulations" "NRIS_VegPointLinks" "NRIS_VegLocations" "NRIS_VegPoint"
<o:p></o:p></span></p>
<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console"">[9] "NRIS_VegPoly"
<o:p></o:p></span></p>
<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console"">attr(,"driver")<o:p></o:p></span></p>
<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console"">[1] "OpenFileGDB"<o:p></o:p></span></p>
<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console"">attr(,"nlayers")<o:p></o:p></span></p>
<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.0pt;font-family:"Lucida Console"">[1] 9<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext">I can open NRIS_VegPoly as a SpatialPolygonsDataFrame with readOGR() (at least I can in another gdb with a similar layer, but this one is too enormous and
R crashes). <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext">But I am also interested in NRIS_VegSubpopulation. This is simply a table, with multiple rows per polygon, with IDs linking them to polygons, but no spatial
data. Trying to open it doesn’t work:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext">Error in readOGR(dsn = "USVEGNRIS.gdb", layer = "NRIS_VegSubpopulations") :
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"> no features found<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext">In addition: Warning message:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"> In ogrInfo(dsn = dsn, layer = layer, encoding = encoding, use_iconv = use_iconv, :<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"> ogrInfo: all features NULL<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext">Can you think of a way to get at such data within R?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Calibri",sans-serif;color:windowtext"><o:p> </o:p></span></p>
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