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

np.random.rand()

m = 0
b = 0
l = 0.0001


x = []
y = []

with open('/home/idstudent/.PyCharmCE2019.1/config/scratches/scratch.txt' , 'r') as infile:
    for line in infile:

        b = line.split(',')
        x.append(float(b[0].strip()))
        y.append(float(b[1].strip()))

normx = []
normy = []

for i in range(0,len(x)):
    normx.append((x[i] - min(x)) / (max(x) - min(x)))
    normy.append((y[i] - min(y)) / (max(y) - min(y)))
b = 0
x = normx
y = normy
print(x)
n = len(x)

for j in range(0,1000000):
    dm = 0
    db = 0
    for i in range(0, len(x)):
        yHat = m * x[i] + b
        dm += (-2 / n) * x[i] * (y[i] - yHat)
        db += (-2 / n) * (y[i] - yHat)

    m = m - l * dm
    b = b - l * db
newX = [0,1]
newY = [b, m + b]

plt.plot(newX, newY, '--')
plt.plot(x, y, 'ro')
plt.show()