Question

我基本上想知道如何存储用户输入并按顺序从最小到最大，以帮助他们找到中间模式或范围。

from __future__ import division
amtnum = 0
sumofnums = 0

print "Hello, This program will help find the mean of as many numbers as you want."
useramtnum = input("How many numbers will you need to enter: ")#asks user to say how many numbers there are
while amtnum < useramtnum:         #Tells program that while the amount of numbers is less than the users input amt of numbers to run.
    amtnum = amtnum + 1         #Tells that each time program asks for number add one to amt of numbers
    entnum = (int(raw_input("Enter a number:"))) #Asks user for number
    sumofnums = entnum + sumofnums #Adds users number to all values

print "The amount of your numbers added up were:", sumofnums
print "The average/mean of your numbers were:", (sumofnums/useramtnum)

Answer 1

将'em放在列表中并对其进行排序

mylist = []
while ...
    mylist.append(entnum)

mylist.sort()
print mylist

Answer 2

利用名为list的基本数据结构！

在while循环之前，创建一个列表（又名数组）

user_input_list = []
在while循环中获取用户的个人号码后，将输入添加到列表中（在while循环中）

user_input_list.append(entnum)
在while循环之后，对列表进行排序（它将在适当的位置排序）

user_input_list.sort()

然后，列表按用户的排序顺序排列每个输入，最少到最大。

要访问列表中的最后一项，请使用数组访问器。

user_input_list[-1]

要访问中位数，请利用您可以使用列表长度的事实。访问长度（列表）/ 2项

user_input_list[int( len(user_input_list) / 2)] #int cast used to remove decimal points

Answer 3

我绝不是Python专家（就像我的第三个python程序一样），但我认为通常更容易调用函数，无论是Python还是其他任何语言。它使代码更具可读性。

这些都是基本的数学函数，所以我不会因为写这些函数而剥夺了你的知识。但是，我确实留下了range函数给你写了。（由于mylist已排序，我确定您可以解决它。）

这允许用户连续输入数字并将平均值，中位数和模式吐回来。它不处理非整数输入。

from collections import Counter
from decimal import *

def getMode(l):
    data = Counter(l)
    mode = data.most_common(1)
    print "mode:", mode

def getMean(l):
    length = len(l)
    total = 0
    for x in l:
        total = total + x
    mean = Decimal(total) / Decimal(length)
    print "mean:", mean

def getMedian(l):
    median = 0
    length = len(l)
    if (length % 2 == 0):
        median = (l[length/2] + l[length/2 - 1])/2.0
    else:
        median = l[length/2]
    print "median:", median

mylist = []

print "Enter numbers to continually find the mean, median, and mode"

while True:
    number = int(raw_input("Enter a number:"))
    mylist.append(number)
    mylist.sort()
    getMean(mylist)
    getMedian(mylist)
    getMode(mylist)

Answer 4

解决问题的解决方案：

使用列表：More on Lists

示例：

numbers = []
while amount < counter:
    ...
    numbers.append(num)
print sorted(numbers)

您可以在下面看一下代码的修改。

numbers = []

print "Hello, This program will help find the \
       mean of as many numbers as you want."

while True:
    try:
        counter = input("How many numbers will you need to enter: ") 
    except:
        print "You haven't entered a number."
    else:
    break

amount = 0
while amount < counter:
    try:
        num = input("Enter a number: ")
    except:
        print "You haven't entered a number."
    else:
        amount += 1
    numbers.append(num)

print "The amount of your numbers added up were:", (sum(numbers))
print "The average/mean of your numbers were:",  ( (sum(numbers)) / counter)
print "My list not in order:", numbers
print "My list in order:", sorted(numbers)

如何订购用户输入的数字？

4 个答案: