MATLAB version 2018b provides a different exception identifier for the same situation than version 2017b did. Can you suggest the easiest way to handle this that works for both versions?

 % this same bit of code causes the identifier "MATLAB:imagesci:h5info:unableToFind"
 % is there a better way to catch this exception that will work for both versions?

IMUstring = '/Nav_Data/'; % does this group exist in the hdf5 file?
try
  h5info(full_h5_name,IMUstring);
catch err % No, so check for this group instead
  if strcmp(err.identifier,'MATLAB:imagesci:h5info:libraryError')
      IMUstring='/ER2_IMU/';
      try
          h5info(full_h5_name,IMUstring);
      catch err % Not that group.  One last option
          IMUstring = '/ApplanixIMU/';
          try
              h5info(full_h5_name,IMUstring);

            catch err % out of options.  Alert the user to problem
                if strcmp(err.identifier,'MATLAB:imagesci:h5info:libraryError')
                    error('problem identifying IMU in use.  Did you give the correct filename?')
                end
            end
        end
    end

[Walter Roberson]

ismember test instead of strcmp if you want to accept either?

Answer 1

[Fangjun Jiang]

You didn't identify other errors. Is it necessary to identify this error, or you just simply need to catch an errors.

Anyway, I had to use version() or verLessThan() a few times to make my script working in different versions of MATLAB.