Convert quarters to long date using Python-CodePudding

I have a dataset where I would like to convert the values within a specific column to a long date. The long date will always be the first of the first month of that quarter.

**Ex. Q122 = 1/1/2022,   Q222 = 4/1/2022,  Q322 = 7/1/2022,  Q422 = 10/1/2022**

Data

ID   Date   Location

AA   Q123   NY
BB   Q425   CA
CC   Q226   NY
CC   Q326   NY

Desired

ID   Date   Location   LongDate

AA   Q123   NY         1/1/2023
BB   Q425   CA         10/1/2025
CC   Q226   NY         4/1/2026
CC   Q326   NY         7/1/2026

Doing

df['Date'] = pd.PeriodIndex(qs, freq='Q').to_timestamp()

Error is unable to parse. I am thinking there has to be initial conversion here. Researching this, any suggestion is appreciated.

CodePudding user response：

You can do with reversing the pattern:

pd.to_datetime(df['Date'].str[-2:] df['Date'].str[:2]).dt.strftime('%m/%d/%Y')

0    01/01/2023
1    10/01/2025
2    04/01/2026
3    07/01/2026
Name: Date, dtype: object

Note that .dt.strftime('%m/%d/%Y') should be only used if you want them as strings. I recommend you dont use them and let it be date