fieldnames (MATLAB Function Reference)

Field names of a structure

names = fieldnames(s)

names = fieldnames(s)

returns a cell array of strings containing the structure field names associated with the structure s.

Examples

Given the structure:

mystr(1,1).name = 'alice';
mystr(1,1).ID = 0;
mystr(2,1).name = 'gertrude';
mystr(2,1).ID = 1

Then the command n = fieldnames(mystr) yields

n = 

    'name'
    'ID'