如何将CSV文件的行转换为对象列表?

2024-03-29 07:04:22 发布

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我正在处理患者数据。我将患者数据存储在CSV文件中。每排都是一个新病人,有几百个病人。我想访问患者的发病率列表。例如,“我的患者”列表的索引0将输出具有以下属性的患者对象:

{第一个:'撒迦利亚', last:'四季', 年龄:21}

等等。下面是我正在编写的代码,尽管我不知道如何在不手动初始化每个对象的情况下生成多个对象。考虑到有数以百计的病人,这将是非常不切实际的。你知道吗

import ASD as asd

class Patient:
    mrn = 0
    first = '' 
    last = '' 
    gender = 0
    smoker = 0
    bmi = 0
    asa = 0 
    cci = 0
    dob = '' 
    dos = '' 
    age = 0

    def setData(self, mrn, first, last, gender, smoker, bmi, asa, cci, dob, dos, age):
        self.mrn = mrn
        self.first = first
        self.last = last
        self.gender = gender
        self.smoker = smoker
        self.bmi = bmi
        self.asa = asa
        self.cci = cci
        self.dob = dob
        self.dos = dos
        self.age = age

    def showData(self):
        print("MRN\t:",self.mrn)
        print("First\t:", self.first)
        print("Last\t:", self.last)
        print("Gender\t:", self.gender)
        print("Smoker\t:", self.smoker)
        print("BMI\t:",self.bmi)
        print("ASA\t:", self.asa)
        print("CCI\t:", self.cci)
        print("DOB\t:", self.dob)
        print("DOS\t:", self.dos)
        print("Age\t:", self.age)

def main():

    p1 = Patient()
    p1.setData(asd.file1['MRN'][0],
               asd.file1['First'][0],
               asd.file1['Last'][0],
               asd.file1['Female'][0],
               asd.file1['Smoker'][0],
               asd.file1['BMI'][0],
               asd.file1['ASA'][0],
               asd.file1['CCI'][0],
               asd.file1['DOB'][0],
               asd.file1['DOS'][0],
               asd.file1['Age'][0])
    p1.showData()

if __name__ == '__main__':
    main()

Tags: self患者genderfile1firstlastprintbmi
2条回答

您只需导入熊猫,读取您的CSV文件,并访问患者的信息。你知道吗

import pandas as pd
patients = pd.read_csv("patients.csv")

# To access information
patients.loc[0] #or patients.iloc[0]

csv模块支持从csv文件读取。如果你想做复杂的数据插值,那么当然有熊猫。假设这是一个简单的操作,应该是这样的

import csv

with open(filename, 'r') as stream:
  reader = csv.DictReader(stream)
  count == 0
  for row in reader:
    if count != 0 # skip the header, or do something here
    p = Patient(row["mrn"], row["first"], row["last"], row["gender"], row["smoker"], row["bmi"], row["asa"], row["cci"], row["dob"], row["dos"], row["age"])
    print(p)
    count += 1

我还看到您的patient定义类没有遵循惯用的python。它可以通过以下方式重写为更具python风格。你知道吗

class Patient:
   def __init___(self, mrn=None, first=None, last=None, gender=None, smoker=None, bmi=None, asa=None, cci=None, dob=None, dos=None, age=None)
     self.mrn = mrn
     self.first = first
     self.last = last
     self.gender = gender
     self.smoker = smoker
     self.bmi = bmi
     self.asa = asa
     self.cci = cci
     self.dob = dob
     self.dos = dos
     self.age = age
def __repr__(self):
    return '''MRN: {}
            First: {}
            ...
            ASA: {}'''.format(self.mrn, self.first,....,self.asa)

由于构造函数有许多字段,最大的优点之一是可以使用关键字参数来实例化类,并降低将某些字段与其他值混淆的风险。你知道吗

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