calledby(depth)

out = calledby(func_name)
OVERVIEW
Queries the source of a function call, with variable depth, returning
the calling function's name.
FORMS
out = calledby
out = calledby(depth)
DESCRIPTION
out = calledby
Returns the name of the calling function
out = calledby(depth)
Returns the name of the calling function at depth depth

INPUTS
depth - Depth of calling function to search. 0=current function,
1=calling function (default), etc..

OUTPUTS
out - Name of calling function or queried function. Returns 'root' if
called from base workspace

EXAMPLES
Example 1
calledby % Returns error
calledby(0) % Returns root
calledby(1) % Returns error

Example 2
% Drop this into a script called test1.m
function test1
calledby
fprintf('Should return root. Press any key... \n'); pause

calledby(1)
fprintf('Should return root. Press any key... \n'); pause

calledby(0)
fprintf('Should return test1. Press any key... \n'); pause

test2
end
function test2
calledby
fprintf('Should return test1. Press any key... \n'); pause

calledby(1)
fprintf('Should return test1. Press any key... \n'); pause

calledby(2)
fprintf('Should return root. Press any key... \n'); pause

calledby(0)
fprintf('Should return test2. Press any key... \n'); pause

%calledby(3)
%fprintf('Should return error \n');
end

See also function is_calledby(func_name)
http://www.mathworks.com/matlabcentral/fileexchange/51280-is-calledby-func-name-