Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
I have thousands of buildings blocks in ArcGIS. I want to select a half of this blocks randomly.
How can I do it?
I would create an attribute containing a float random number in the intervall [0...1] and select all features with an attribute value smaller than 0.5.