Delete elements in a array

Hi, I have a large array. I want to delete certain elements in the array. I want to delete the 390th element, and then after that every 391th element......

So need to delete 390, 781, 1182 etc..........

Answer 1

[Wayne King]

So when you say "array", you mean a 1-D vector?

   X = randn(49121,1); 
   indices = 390:391:length(X);
   X(indices) = [];
   length(X)

[Image Analyst]

Or: X(390:391:end) = [];

Answer 2

[Wayne King]

 X = randn(100,100);
 % not sure how far you want the vector to go
 indices = 390:391:1e4;
 X(indices) = [];

Then you'll need to reshape X into an array. Or you can just replace the elements with NaNs

   X = randn(100,100);
   % not sure how far you want the vector to go
   X(indices) = NaN;

[Mate 2u]

it is 49121 array, and does not seem to be working. So this 49121 array would minus 125 elements and would be just less than 4900 then

[Image Analyst]

Yes. 48996 to be precise, just like it does give you in the 1D version above.