Ranges with different step size for odd and even steps in MATLAB

Question

What is the fastest and the simplest way to generate an array like `[0, 1, 3, 4, 6, 7, 9, 10, ...]` in MATLAB?

Accepted Answer

You can obtain the cumulative sum of the vector of steps (in your case it is `[1 2 1 2 1 2 1 2 ...]`). For example:

```
x = cumsum([0, repmat([1 2], 1, 4)])

x = 
    0     1     3     4     6     7     9    10    12
```

Solution