Question

我在调试此程序时遇到问题，该程序计算了许多推文的p值：

db = connection.data
shows = db.individual

def pvalue():
    #p-values of total tweets
    show_records = sorted([(m['total_tweets'], m) for m in db.individual.find()])

    index=0
    while index < len(show_records):    
         show = show_records[index]
        tweet_pvalue = 1 - (index + 1.0) / len(show_records)
        total=show['total_tweets']
        shows.update({"id": show[1]["id"]}, {'$set':{"pvalue_total_tweets":tweet_pvalue}})

    #need to remove several occurences of the same number of tweets to not false the p-value. 

        while show_records[index + 1]['total_tweets'] == total: #while next document has the same number of tweets
            index+=1
            show=show_records[index]
            shows.update({"id": show[1]["id"]}, {'$set':{"pvalue_total_tweets":tweet_pvalue}})

它返回：

total=show['total_tweets']
TypeError: tuple indices must be integers, not str

非常感谢你的帮助！

Answer 1

show_records = sorted([(m['total_tweets'], m) for m in db.individual.find()])

这将返回[(1, {'total_tweets': 1}), (2, {'total_tweets': 2}]等元组列表。

这一个

show = show_records[index]

返回（例如，如果index == 1） - (2, {'total_tweets': 2})，这是元组。而你正在努力做到

(2, {'total_tweets': 2})['total_tweets']

它会导致错误。你应该写：

(2, {'total_tweets': 2})[1]['total_tweets']

python，while循环，p值

1 个答案: