BUG: resample in single group case not using how passed function · Issue #3849 · pandas-dev/pandas (original) (raw)

Skip to content

Navigation Menu

• • GitHub Copilot Write better code with AI
  • GitHub Advanced Security Find and fix vulnerabilities
  • Actions Automate any workflow
  • Codespaces Instant dev environments
  • Issues Plan and track work
  • Code Review Manage code changes
  • Discussions Collaborate outside of code
  • Code Search Find more, search less
• Explore
  • Learning Pathways
  • Events & Webinars
  • Ebooks & Whitepapers
  • Customer Stories
  • Partners
  • Executive Insights
• • GitHub Sponsors Fund open source developers
  • The ReadME Project GitHub community articles
• • Enterprise platform AI-powered developer platform
• Pricing

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Sign up

Appearance settings

Description

In [34]: s = Series([30.1,31.6],index=[Timestamp('20070915 15:30:00'),Timestamp('20070915 15:40:00')])

In [35]: s
Out[35]: 
2007-09-15 15:30:00    30.1
2007-09-15 15:40:00    31.6
dtype: float64

In [36]: s.resample('D',how=lambda x: np.std(x))
Out[36]: 
2007-09-15   NaN
Freq: D, dtype: float64

In [37]: s.groupby(pd.TimeGrouper('D')).apply(lambda x: np.std(x))
Out[37]: 
2007-09-15    0.75
dtype: float64