如何从列表中取出x和y，以便使用它创建图形

Question

So I made my list but after that I don't know how to take out of it my x and y so I can use it later to create a graph

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

tabuletson = []

for i in range(0, 10):
    x = round(random.uniform(-1000,1000),2)
    y = (2*x+1)
    tabuletson.append([x,y])

print(tabuletson)

wielomian = np.poly1d(np.polyfit(x,y,3))
linia = np.linspace(-2000,2000,2000)

plt.scatter(x,y)
plt.plot(linia,wielomian(linia))
plt.show()

Answer 1

我认为，根据plt.scatter和plt.plot的工作方式，这是一种更好的方法。希望它能像你想的那样工作

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

x = []; y = []

for i in range(10):
    x.append(round(random.uniform(-1000,1000),2))
    y.append(2*x[i]+1)

wielomian = np.poly1d(np.polyfit(x,y,3))
linia = np.linspace(-2000,2000,2000)

plt.scatter(x,y)
plt.plot(linia,wielomian(linia))
plt.show()