from matplotlib import pyplot as plt
import pandas as pd


import sqlite3

con = sqlite3.connect("db.sqlite3")

df = pd.read_sql_query(
    """SELECT *
		FROM analizes a
		JOIN control_cases c ON c.id = a.case_id
		JOIN params p ON p.id = c.params_id
""",
    con,
)

df2 = df.query("pe == 2").query("rel_c==1000")

plt.plot(df2["rel"], df2["psi_max"], ls="o")
plt.show()