pandas 0.9.1 documentation

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Table Of Contents

What’s New
Installation
Frequently Asked Questions (FAQ)
Package overview
Intro to Data Structures
Essential basic functionality
Indexing and selecting data
Computational tools
Working with missing data
Group By: split-apply-combine
Merge, join, and concatenate
Reshaping and Pivot Tables
Time Series / Date functionality
Plotting with matplotlib
IO Tools (Text, CSV, HDF5, ...)
Sparse data structures
Caveats and Gotchas
rpy2 / R interface
Related Python libraries
Comparison with R / R libraries
API Reference

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pandas.DataFrame.first_valid_index¶

DataFrame.first_valid_index()¶: Return label for first non-NA/null value

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