Hot answers tagged data-management
7
The informative part of the error is that the data you operating on is an S4 class object and as such contains slots. This means that you need to operate on the appropriate slot "@data" containing your dataframe.
If you want to delete "all" rows with NA values you can just use na.omit on the dataframe slot. This does propgate through the sp object and ...
5
What about QGIS Browser?
QGIS trunk now comes with a separate tool called “QGIS Browser”. It
enables the user to browse through all spatial data files on the
system as well as all WMS configured in QGIS. Both files and WMS
layers are listed in a tree widget on the left side while metadata,
attributes and a preview can be seen on the right.
...
4
The thing about non-enterprise data storage is the users of this data frequently have changing/varying needs. In an enterprise setting it's not always most efficient to store data in central geodatabases, but it goes a long way in sticking people to standards, which can be taught and monitored.
At the most basic level, a small company should house any ...
2
Though I am not too experienced with spatial data management, I found the following Software-Carpentry.org video tutorial (discussing general data management practices, widely applicable to various scenarios) pretty helpful:
Data Management
2
I just re-read this question today in a different form.
For Non-versioned data there is the differ which was created for 9.3
schema mapping and documenting tool
1
I've seen an implementation based on multiple databases for a single application (indeed the application is deployed N-times) and at this very time they are moving the other way around due to customer`s needs evolution, exactly as you described :)
Their new requirements that made this design decision a problem to them are basically:
Create an integrated ...
1
From ESRI:
Although not recommended, it is possible to copy a file geodatabase to another location by copying the folder to another location (if you are using a Windows Vista operating system, you also need to change the extension of the new folder to .gdb; otherwise, ArcGIS cannot recognize it as a file geodatabase). Only copy a file geodatabase with ...
1
In GRASS GIS, you can use v.reclass to achieve this goal. For each target category (ID) you can define a where statement to use attribute values to perform the job. See the manual for an example. Other tools like v.to.db help you to populate the attribute table properly for this task.
1
I had a similar problem involving a one to many relatioinship with a feature class of a little over 175000 and a feature class of over 500000 records. The XY to line tool was crashing after creating anywhere from 10000 to 15000 lines. After designing a complex and slow python script that tiptoed around the records limit by using a custom made index layer ...
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