我用于计算模式的 Tkinter 标签正在返回 "N." 为什么会这样，我该如何解决？

Question

from tkinter import *
import random
from collections import Counter

root = Tk()
root.title("Random")
root.geometry("600x400")
root.resizable(False, False)


def open_saw():
    saw_wn = Tk()
    saw_wn.title("Random App - Spin a Wheel")
    saw_wn.geometry("600x400")
    saw_wn.resizable(False, False)

    saw_wn.mainloop()


def open_coin():
    c_wn = Tk()
    c_wn.title("Random App - Flip a Coin")
    c_wn.geometry("600x400")
    c_wn.resizable(False, False)

    Label(c_wn, text="                            ").grid(row=0, column=0)
    Label(c_wn, text="Flip the coin below!").grid(row=0, column=1)

    c_wn.mainloop()


def open_average():
    avg_wn = Tk()
    avg_wn.title("Random App - Averages")
    avg_wn.geometry("800x400")
    avg_wn.resizable(False, False)

    Label(avg_wn, text="                                     ").grid(row=0, column=0)
    Label(avg_wn, text="Enter your values below to get the averages in mean, median, and mode.(put a space between "
                       "commas)").grid(row=0, column=1)

    Label(avg_wn, text="                                     ").grid(row=1, column=0)
    entry = Entry(avg_wn)
    entry.grid(row=2, column=1)

    def calculate():
        list_data = entry.get().split(', ')
        list_data = [float(i) for i in list_data]
        mean = sum(list_data) / len(list_data)
        Label(avg_wn, text='Mean: ' + str(mean)).grid(row=5, column=0)

        list_data_len = len(list_data)
        list_data.sort()

        if list_data_len % 2 == 0:
            median1 = list_data[list_data_len // 2]
            median2 = list_data[list_data_len // 2 - 1]
            median = (median1 + median2) / 2
        else:
            median = list_data[list_data_len // 2]
        Label(avg_wn, text='Median: ' + str(median)).grid(row=5, column=1)

        list_data_for_mode = Counter(list_data)
        get_mode = dict(list_data_for_mode)
        mode = [k for k, v in get_mode.items() if v == max(list(list_data_for_mode.values()))]

        if len(mode) == list_data_len:
            get_mode = "No mode found"
        else:
            get_mode = [str(i) for i in mode]

        Label(avg_wn, text=get_mode[0]).grid(row=5, column=2)

    Label(avg_wn, text="                                     ").grid(row=3, column=0)
    Button(avg_wn, text='Enter', command=calculate).grid(row=4, column=1)


Label(root, text="                                                          ").grid(row=0, column=0)

title = Label(root, text="Welcome to Random")
title.config(font=("Yu Gothic UI", 24))
title.grid(row=0, column=1)

button1 = Button(root, text="             Spin a wheel             ", padx=80, pady=25, command=open_saw)
button1.place(x=2.25, y=100)

button2 = Button(root, text="Calculate mean, mode, median, and range", padx=20, pady=25, command=open_average)
button2.place(x=325, y=100)

button3 = Button(root, text="Flip a Coin", padx=125, pady=25, command=open_coin)
button3.place(x=2.25, y=200)

button4 = Button(root, text="Roll a die", padx=107.5, pady=25)
button4.place(x=325, y=200)

root.mainloop()

我正在制作一个可以解决简单统计问题的应用程序。我目前正在研究计算众数、均值和中位数的方法。均值和中位数正确显示在它们的位置，但众数不是。它显示一个“N”，我不知道它为什么这样做。请告诉我如何修复它，请告诉我它是什么以及它的含义，因为我想从中学习。

Answer 1

是因为当len(mode) == list_data_len为True时，get_mode会被赋值为"No mode found"。所以 text=get_mode[0] 会将 "N" 分配给标签。 get_mode = ["No mode found"] 应该改用：

    def calculate():
        ...

        if len(mode) == list_data_len:
            get_mode = ["No mode found"]
        else:
            get_mode = [str(i) for i in mode]

        mode_label.config(text=get_mode[0])

我用于计算模式的 Tkinter 标签正在返回 "N." 为什么会这样，我该如何解决？

My Tkinter Label for calculating mode is returning "N." Why is this and how do I fix this?

python

windows

statistics

tkinter