MATLAB: Am I unable to delete an annotation using an empty string in SIMULINK 6.3 (R14SP3)

get_paramremovesimulinktext;

When I try to delete annotations by first getting the handle of the annotation and then setting the "Text" to the empty string by referring to the documentation Section 'Creating Annotations Programmatically',
h = find_system('test', 'FindAll', 'on', 'Type', 'annotation');
set_param(h, 'Name', '');
I receive the following warning and the annotation is not deleted, although the documentation still advocates this method:
 Warning: You cannot set an annotation name to an empty string.

Best Answer

In releases before Simulink 6.5, there is an error in the documentation for deleting annotations under 'Creating Annotations Programmatically'. The documentation should read as follows:
To delete an annotation, use the find_system command to get the annotation's handle and then use DELETE function for e.g.,
delete(find_system(gcs, 'FindAll', 'on', 'type', 'annotation'));
Related Question