Specialized on Data processing, Data management Implementation plan, Data Collection tools - electronic and paper base, Data cleaning specifications, Data extraction, Data transformation, Data load, Analytical Datasets, and Data analysis. BJ Data Tech Solutions teaches on design and developing Electronic Data Collection Tools using CSPro, and STATA commands for data manipulation. Setting up Data Management systems using modern data technologies such as Relational Databases, C#, PHP and Android.
Friday, May 29, 2020
Identifying area of overlap from geoinpoly
Hello everyone
I'm working with two maps of the UK, with polygons of similar sizes. Specifically, I'm looking at NUTS3 areas and travel-to-work areas. I would like to create a unique match between NUTS3 areas and TTWAs, i.e. identify the TTWA with the highest overlap for each NUTS3 area. So far, I've managed to identify the overlapping areas using Robert Picard's geoinpoly. However, this only tells me that two areas overlap, but not by how much. Is it possible to calculate the area of overlap, to identify that with the highest overlap?
I think one way to approach this problem would be to use mergepoly to create all the overlapping polygons and calculate their area. Unfortunately I couldn't find a command that calculates the area of polygons, so any hints in this direction would also be appreciated.
Many thanks
Carolin
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