Finds index of nearest value in array.

    Args:
        array: numpy array
        value:

    Returns:
        int

    http://stackoverflow.com/questions/2566412/find-nearest-value-in-numpy-array

def index_nearest(array, value):
    """
    Finds index of nearest value in array.

    Args:
        array: numpy array
        value:

    Returns:
        int

    http://stackoverflow.com/questions/2566412/find-nearest-value-in-numpy-array
    """
    idx = (np.abs(array-value)).argmin()
    return idx