题解 | 牛客用户刷题量的方差与提交次数的标准差
import pandas as pd data = pd.read_csv('Nowcoder.csv') var1 = round(data['Num_of_exercise'].var(), 2) std = data['Number_of_submissions'].std() # round()函数会自动去除末尾的0 print(var1) print('%.2f' %std) # 改用格式化方式保留两位小数
import pandas as pd data = pd.read_csv('Nowcoder.csv') var1 = round(data['Num_of_exercise'].var(), 2) std = data['Number_of_submissions'].std() # round()函数会自动去除末尾的0 print(var1) print('%.2f' %std) # 改用格式化方式保留两位小数
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