如何在Python中基于DataFrame中的日期创建列?
我的数据框架如下所示:如何在Python中基于DataFrame中的日期创建列?,python,pandas,dataframe,date,aggregation,Python,Pandas,Dataframe,Date,Aggregation,我的数据框架如下所示: rng = pd.date_range('2020-12-01', periods=5, freq='D') df = pd.DataFrame({"ID" : ["1", "2", "1", "1", "2"], "Date" : rng, "ki
rng = pd.date_range('2020-12-01', periods=5, freq='D')
df = pd.DataFrame({"ID" : ["1", "2", "1", "1", "2"],
"Date" : rng,
"kind" : ["active", "not_active", "active", "active", "not_active"],
"status" : ["b2", "b2", "g8", "g8", "v10"]})
我需要创建DataFrame,它将显示上次活动和上次未活动协议的状态。下面是我上传的结果示例:
如果对日期时间进行了排序,则可以使用: 如果不确定是否已排序,请添加:
df = (df.pivot_table(index='ID', columns='kind', values='status', aggfunc='last')
.reset_index()
.rename_axis(None, axis=1))
df = (df.sort_values(['ID','Date'])
.pivot_table(index='ID', columns='kind', values='status', aggfunc='last')
.reset_index()
.rename_axis(None, axis=1))
print (df)
ID active not_active
0 1 g8 NaN
1 2 NaN v10