How do i create a matrix of size 1 row and 1501 column, with values [1 -1 1 -1 1 -1.... etc

(countinuously 1 then -1 repeating.

thanks Dan

Answer 1

[Bjorn Gustavsson]

v = (-1).^(0:n);
HTH

Answer 2

[Wayne King]

One way:

 x = ones(1,1501);
 x(2:2:end) = -1*x(2:2:end);

Another way

    y = repmat([1 -1],1,751);
    y(end) = [];

[Daniel Shub]

Hey, no fair on the edit ...

Answer 3

[Daniel Shub]

[repmat([1,-1], 1, floor(1501/2)), 1]