小编Har*_*ass的帖子

我正在创建一个程序来查找Mean,Median,Mode或Range.当我运行它时它工作正常,直到它到达计算答案的部分.它给了我一个"无法预先形成减少灵活类型"的错误.我搜索了这个错误但找不到我需要解决的问题.这是我第一次使用numpy,所以任何帮助都会很棒.

import sys
import numpy as np

welcomeString = input("Welcome to MMMR Calculator\nWhat would you like to calculate(Mean,Median,Mode,Range):")

if welcomeString.lower() == "mean":
   meanNumbers = input("What numbers would you like to use?:")
   print (np.average(meanNumbers))
   stop = input()

if welcomeString.lower() == "median":
    medianNumbers = input("What numbers would like to use?:")
    print (np.median(medianNumbers))
    stop = input()

if welcomeString.lower() == "mode":
    modeNumbers = input("What numbers would you like to use?:")
    print (np.mode(modeNumbers))
    stop = input()

if welcomeString.lower() == "range":
    rangeNumbers = input("What numbers would …