Regime_Dates_df.index = Regime_Dates_df.DATE
Regime_Dates_df['MONTH_YEAR'] = pd.to_datetime(Regime_Dates_df.index).to_period('M')
Preview:
downloadDownload PNG
downloadDownload JPEG
downloadDownload SVG
Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!
Click to optimize width for Twitter