gpsv

import tkinter as tk
import matplotlib.mlab as mlab
import matplotlib.pyplot as plt
import random

def lcg(modulus, a, c, seed):
    """Linear congruential generator"""
    while True:
        seed = (a * seed + c) % modulus
        yield seed / modulus

lcg_gen = lcg(2**32, 1664525, 1013904223, 0)


n_bins = 50
fig, axs = plt.subplots(2, 1, sharey=True, tight_layout=True)
plt.ion()
plt.show(block=False)


ROOT = tk.Tk()
ROOT.withdraw()

while True:

    USER_INP = tk.simpledialog.askstring(title="ГПСЧ", prompt="Длина: ")


    if type(USER_INP) is not str:
        plt.show(block=True)
        break

    try:
        n = int(USER_INP)
        if n <= 0:
            raise ValueError

    except ValueError:
        tk.messagebox.showinfo("Ошибка!", "Неарвильный ввод. Необходимо целое число")
        continue


    x1 = [random.random() for i in range(n)]
    x2 = [next(lcg_gen) for i in range(n)]


    axs[0].clear()
    axs[0].hist(x1, bins=n_bins)
    axs[0].set_title('random() '+ str(n))

    axs[1].clear()
    axs[1].hist(x2, bins=n_bins)
    axs[1].set_title('lcg() '+ str(n))


    plt.draw()