def z_score(data, axis):
    if (axis == 3):
        return data
    if (axis == 1):
        z_scored = data
    else:
        z_scored = data.T
    z_scored = ((z_scored - z_scored.mean()) / z_scored.std())
    if (axis == 1):
        return z_scored
    else:
        return z_scored.T
def z_score(data, axis):
    if (axis == 3):
        return data
    if (axis == 1):
        z_scored = data
    else:
        z_scored = data.T
    z_scored = ((z_scored - z_scored.mean()) / z_scored.std())
    if (axis == 1):
        return z_scored
    else:
        return z_scored.T