Error Index exceeds matrix dimensions

Data 1000x100
for i = 2:length(x)-1
     [x ,y] = min(Data(i));
     if x(i) < x(i-1)+10 && x(i) < x(i+1)+10
       x(i)=x(i);
     end
end
Index exceeds matrix dimensions.

Hello! I have a matrix, I'm trying to create a loop that I need for a maximum of x values, but it gives me such an error

[Adam]

With breakpoints or pause on errors it is easy to find these things looking on command line.

You shouldn't use length in this situation. size( x, 1 ) is much safer if that is what you mean, although x is undefined at that point in the code snippet you gave us also. Your if statement currently does nothing other than assign something to itself.

Answer 1

[Jan]

After

[x ,y] = min(Data(i));

x is a scalar. Then x(i) cannot work for i > 1.

By the way, as Adam has said alread, x(i)=x(i) does nothing, so the purpose of the code is unclear.