Cacher is the code snippet organizer for pro developers

def refine(a, n):
    """Refine an array, make more points.
    """
    import numpy as np

    size = len(a)
    xp = np.linspace(0, 1, size)
    fp = a
    x = np.linspace(0, 1, n * (size - 1) + 1)
    f = np.interp(x, xp, fp)
    return f