1c.py

#!/usr/bin/python

import matplotlib.pyplot as plt

# trainings (x, y) pairs
trainings = [[1,2],[3,6],[7,14],[2,4],[4,8]]

trainings_X = [row[0] for row in trainings]
trainings_Y = [row[1] for row in trainings]

import random
import time

# 가정: y = ax + b

while True:

    a = random.uniform(0,10)
    b = random.uniform(0,10)

    err = 0

    # 오차
    for i, t_x in enumerate(trainings_X):

        y = a * t_x + b # 가정값

        t_y = trainings_Y[i] # 실제값

        err += abs(y - t_y) # 오차값

    print ("a=",a,"b=",b,"err=",err)

    time.sleep(1)