[英]How do I calculate a percentage of total for any and all elements in a list?
from statistics import mean
names = []
votes = []
numCandidates = 5
for candidate in range(numCandidates):
names.append(input("Enter Candidate {0}'s last name: ".format(candidate + 1)))
votes.append(int(input("Enter Candidate {0}'s amount of votes: ".format(candidate + 1))))
print()
print("Candidate\t Votes Received\t\t % of total votes")
for index,name in enumerate(names):
print(name,"\t\t",votes[index])
print()
print("Total Votes:\t",sum(votes))
print("Average votes:\t",mean(votes))
print()
print("Winner:\t\t",max(votes))
print("Lowest Votes:\t",min(votes))
I have the user create input to two lists, one for names and one for amount of votes.我让用户创建两个列表的输入,一个用于名称,一个用于投票数量。 I then enumerate the lists to give the appearance of a table:然后我枚举列表以给出表格的外观:
Candidate Votes Received % of total votes
name1 5000
name2 3000
name3 4000
name4 7000
name5 6000
Total Votes: 25000
Average votes: 5000
Winner: 7000
Lowest Votes: 3000
Now, I'd like the % of total to display a percentage of total, for example for name1
the output should be 20.00%
.现在,我希望占总数的百分比显示占总数的百分比,例如对于name1
应该是20.00%
。
I believe I need something like votes.index[1] / sum(votes)
but I don't know how to make the index "dynamic".我相信我需要像votes.index[1] / sum(votes)
这样的东西,但我不知道如何使索引“动态”。
How can I achieve this?我怎样才能做到这一点?
Thanks @fsimonjetz for nudging to the correct answer.感谢@fsimonjetz 提出正确答案。
I ended up adding this to the for loop:我最终将其添加到 for 循环中:
round((votes[index]/sum(votes)*100),2),"%"
As such turning it into:这样把它变成:
for index,name in enumerate(names): # need to add titles to columns
print(name,"\t\t",votes[index],"\t\t\t",round((votes[index]/sum(votes)*100),2),"%")
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