Error using ==> sub2ind at 58 Out of range subscript.

Hallo, I am trying to use sub2ind but I am getting :Error using ==> sub2ind at 58 Out of range subscript. My code=

n = size(X ,2);
 C = size(Meansi,2);
 jj = sub2ind([C n], Y, (1:n)');

C=8 ,n=8

Y is a 8x1 matrix Y= 9 7 5 8 4 8 2 5

X=8X8 matrix of double.

Could any one please help.Thanx

Answer 1

[Roger Stafford]

The first value of Y, namely 9, is out of range for a subscript in an 8 x 8 matrix. That is undoubtedly what led to the error message.

Answer 2

[LuMig]

Thank you...All the best