Pandas - 将派生日期时间转换为整数
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Pandas - Converting Derived Datetime to Integer
提问by Jeff Saltfist
I have a pandas dataframe, 'df', where there is an original column with dates in datetime format. I set a hard date as a variable:
我有一个 Pandas 数据框“df”，其中有一个原始列，日期为日期时间格式。我将一个硬日期设置为变量：
hard_date = datetime.date(2013, 5, 2)
I then created a new column in my df with the difference between the values in the date column and the hard_date...
然后我在我的 df 中创建了一个新列，其中 date 列中的值与 hard_date 中的值之间存在差异...
df['days_from'] = df['date'] - hard_date
This produced a good output. for instance, when I print the first cell in the new column it shows:
这产生了良好的输出。例如，当我打印新列中的第一个单元格时，它显示：
print (df['days_from'].iloc[0])
28 days 00:00:00
But now I want to convert the new column to just the number of days as an integer. I thought about just taking the first 2 characters, but many of the values are negative, so I am seeking a better route.
但现在我想将新列转换为整数天数。我想只取前2个字符，但许多值都是负数，所以我正在寻找更好的路线。
Any thoughts on an efficient way to convert the column to just the integer of the days?
关于将列转换为天数的有效方法的任何想法？
Thanks
谢谢
