Index in position 2 exceeds array bounds. Index must not exceed 7?

When I run my program some times work and alot of times got this message and I dont know why:

Index in position 2 exceeds array bounds. Index must not exceed 7.

Error in

N1(1,i)=f(n-j,i+j);

my code is :

N1=f(n,:);

for i=1:size(f,1)

if isnan(N1(1,i))

for j=1:size(f,1)

N1(1,i)=f(n-j,i+j);

if ~isnan(f(n-j,i+j))

break

end

end

end

end

Answer 1

[Rik]

Since i and j both range from 1 to the number of rows in f, there is no reason i+j will be less than the number of columns in f.

Since you wrote no comments and didn't use understandable variable names, I cannot provide you with a suggestion for a fix.