#!/usr/bin/env python3

import sys
import numpy as np
import matplotlib.pyplot as plt

FILENAME = sys.argv[1]  # CSV file

data = np.loadtxt(FILENAME, delimiter=',')

D = data[0].size - 1 # Number of dimensions

assert D <= 2
assert D > 0

X = data[:, 0]
Y = data[:, 1] if D > 1 else np.zeros(len(data))
C = data[:, -1]

plt.scatter(X, Y, c=C)
plt.show()