Here is my attempt.
Novice/Competent
xs is a numpy array. Which command sets all but the first and last values in xs to 0?
- A – xs[0:-2] = 0
- B – xs[1:-2] = 0
- C – xs[0:-1] = 0
- D – xs[1:-1] = 0
Competent/Expert
ys is a numpy array with shape (3,2,3)
xs is another numpy array, and we would like to add them by:
zs = xs + ys
Which one of the following shapes is valid for xs?
- A – (3,2)
- B – (3,2,1)
- C – (3,3,3)
- D – (3,2,3,3)