This is a simple example of how to turn text data into mapped data.
Chad Greene (2020). How to map sea level rise (https://www.mathworks.com/matlabcentral/fileexchange/47096-how-to-map-sea-level-rise), MATLAB Central File Exchange. Retrieved .
The data link given in this example file has expired. I've shared a more automated sea level trend interpolator with updated data here: http://www.mathworks.com/matlabcentral/fileexchange/50430-sea-level-rise-trend-interpolator.