How to add Sine component on an array?

I have an array with size of 999999 x 1. I would like to add white noise and sine wave with desired frequency on this array.

How can i do this?

Thanks.

Answer 1

[Cris LaPierre]

Create a 999999x1 vector of random numbers and a 999999x1 vector containing the y values of your sine wave, and use "+" to add all 3 vectors together.