lookfor2(x,y,z,MA)

function lookfor2 = lookfor2(x,y,z,MA)


%lookfor(x,y,z,MA) with x a string that should be a field of the variable y,
%returns the variable stored in y.x and put it as a string in the field z.
%MA tells which assistance mode is asked! {'MAe','MAn','MAp','ZA'}

if isfield(y,x)==0
   lookfor2='?';
   set(z,'string','?');
else
    hulp=getfield(y,x);
    if isfield(hulp.m,MA)
    lookfor2=getfield(getfield(getfield(y,x),'m'),MA);
    set(z,'string',num2str(lookfor2,3));
    else
    lookfor2='?';
    set(z,'string','?');
    end
end