import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
gx = [1,2,3,4]
gy = [3,2,1,2]

# FIGURE: fig1
fig = plt.figure()
ax = fig.add_subplot(111)
ax.scatter(gx, gy)

# FIGURE: fig2
fig = plt.figure()
ax = fig.add_subplot(111)
ax.scatter(gy, gx)
ax.axhline(np.mean(gy))

# FIGURE: test-table
x = [1,2,3,4]
y = [4,3,2,1]
pd.DataFrame({"X": x, "Y": y})