检索局部变量值

Question

我有其他人写的这个功能。如何检索下面“选项”的值？我相信这是一个局部变量。

function [ew1, Periodogram] = dest_modified3(x,m)
n = length(x);
%x2 = dmtrend(x);   % detrended data    (demeaning is done in univariate_d!) 

%m = fix(n^0.6);        % m is the number of frequencies used in estimation.

options = optimset('fminbnd');

%dw = fminbnd('whittle',-1,3,options,x,m);      % LW estimate
[ew1,Periodogram] = fminbnd('ewhittle',-2,4,options,x,m,0); % ELW estimate
%ew2 = fminbnd('ewhittle',-2,4,options,x,m,1);  % FELW estimate
%ew3 = fminbnd('ewhittle',-2,4,options,x2,m,1); % FELW w/ detrending
%[felw1, Periodogram] = felw2st_modified(x,m,3,10);                     

% 2stage FELW 
    %felw2 = felw2st(x2,m,3,10);                        % 2stage      FELW w/ detrending

% fprintf(1,'Number of observations     %7i \n', n);
% fprintf(1,'Number of frequencies used %7i \n\n', m);
% fprintf(1,'Estimate of d: LW estimator                                %7.5f  \n', dw);
% fprintf(1,'Estimate of d: exact LW estimator                          %7.5f  \n', ew1);
% fprintf(1,'Estimate of d: feasible ELW estimator                      %7.5f  \n', ew2);
% fprintf(1,'Estimate of d: feasible ELW estimator with detrending      %7.5f  \n', ew3);
% fprintf(1,'Estimate of d: 2-step feasible ELW estimator               %7.5f  \n', felw1);
% fprintf(1,'Estimate of d: 2-step feasible ELW estimator w/ detrending %7.5f  \n', felw2);