table of Contents
Basic statistical methods
A set of data input by the user (a user input), data and calculates the median / average / variance / summation
nums = []
while True:
num1 = input('请输入你需要输入的数字(输入 q 退出):')
if num1 == 'q':
break
nums.append(int(num1))Summing
def get_sum(nums):
count = 0
for i in nums:
count += int(i)
return count
count = get_sum(nums)
print('count:',count)
The average
def get_average(nums):
count = get_sum(nums)
average_count = count/len(nums)
return average_count
average_count = get_average(nums)
print(average_count)
variance
def get_variance(nums):
average_count = get_average(nums)
variance_count = 0
for i in nums:
variance_count += pow(i-average_count,2)
return variance_count
variance_count = get_variance(nums)
print(variance_count)
Median
def get_median(nums): # ['123', '32', '123', '234']
# 0 1 2 3
nums.sort()
nums_len = len(nums)
if nums_len % 2 == 0:
print((nums[int(nums_len / 2 - 1)] + nums[int(nums_len / 2)]) / 2)
else:
print(nums[nums_len // 2])
get_median(nums)
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