keepfield

Keep specified fields of a structure, discarding other fields.

Description

ML provides a useful function RMFIELD to remove specified field(s) from a structure, but no corresponding function to KEEP specified field(s), removing the rest. This function addresses that discrepancy.

ex.:
a = dir('*.m');
b = keepfield(a,{'name','date'});

This is an exceptionally short but useful piece of code.

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
keep

• MATLAB release: MATLAB 7.0.1 (R14SP1)
• Other requirements: Tested in ver 6.01 and ver 7.04 sp2.

[Omer Demirkaya]

Saved my time! This is exactly what I needed.