我有一个填充了我导入的两个文件中的数据的字典,但是其中一些数据以nan形式出现。如何用nan删除这些数据?有没有办法从充满数据的字典中删除nan?
我的代码是:
import matplotlib.pyplot as plt
from pandas.lib import Timestamp
import numpy as np
from datetime import datetime
import pandas as pd
import collections
orangebook = pd.read_csv('C:\Users\WEGWEIS_JAKE\Desktop\Work Programs\Code Files\products2.txt',sep='~', parse_dates=['Approval_Date'])
specificdrugs=pd.read_csv('C:\Users\WEGWEIS_JAKE\Desktop\Work Programs\Code Files\Drugs.txt',sep=',')
"""This is a dictionary that collects data from the .txt file
This dictionary has a key,value pair for every generic name with its corresponding approval date """
drugdict={}
for d in specificdrugs['Generic Name']:
drugdict.dropna()
drugdict[d]=orangebook[orangebook.Ingredient==d.upper()]['Approval_Date'].min()
我应该添加或采取从这个码远,以确保有没有钥匙,在与南的值的字典值对?
你可以在字典理解中使用'filter()'。请参阅以供参考:http://stackoverflow.com/a/16589453/758446。 – BlackVegetable
是你的字典存储在字典作为键或值? – twinlakes