matlab索引超过矩阵错误，这个程序哪里有问题呀~

matlab索引超过矩阵错误

这个程序怎么改呀，小白看不懂~~55

clear all, close all
warning off
load YaleBCrop025.mat

%nSet = [2 3 5 8 10];
nSet =[10 15 20 25 30 35 38 ];
for i = 1:length(nSet)
n = nSet(i);
idx = Ind{n};
for j = 1:size(idx,1) %test 从1到idx，步长为1，循环idx次
X = [];
for p = 1:n
X = [X Y(:,:,idx(j,p))];
end
X = X/max(X();
[D,N] = size(X);

	% You may tune the lambdas below for better results.
	lambda(1) = 0.06;
	lambda(2) = 0.01;		
	%affine = false; outlier = true; Dim = 10; alpha = 4;		
    affine = false; outlier = true; Dim = 100; alpha = 4;	
	[missrate, C,grp] = edsc(X,s{n},lambda,affine,outlier,Dim,alpha);
			
    missrateTot{n}(j) = missrate;		
	
	disp([num2str(n) ' subjects, ' 'sequence ' num2str(j) ': ' num2str(100*missrateTot{n}(j)) '%']);		
end	
avgmissrate(n) = mean(missrateTot{n});
medmissrate(n) = median(missrateTot{n});	
disp([num2str(n) ' subjects: ']);
disp(['Mean: ' num2str(100*avgmissrate(n)) '%, ' 'Median: ' num2str(100*medmissrate(n)) '%']);

end