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1.
- %%timeit
- import csv
- def read_csv(file_name):
- with open(file_name,'r+') as f:
- reader = csv.DictReader(f)
- return list(reader)
-
- data = read_csv('./data/BeijingPM20100101_20151231.csv')
- temp_list = [float(item['TEMP']) for item in data if item['TEMP']!='NA']
- sum(temp_list)/len(temp_list)
2.
- %%timeit
- import pandas as pd
- df = pd.read_csv('./data/BeijingPM20100101_20151231.csv')
- #print(df.head())
- df['TEMP'].mean()
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