CHAPTER 5 Getting Started with p

5.1 Introduction to pandas Data Structures

series

dataframe

index objects

Some Index methods and properties.png

5.2 Essential Functionality

Reindexing

reindex function arguments.png

Dropping Entries from an Axis

Indexing, Selection, and Filtering

Indexing options with DataFrame.png

Integer Indexes

Arithmetic and Data Alignment

Flexible arithmetic methods.png

Function Application and Mapping

apply applying a function on one-dimensional arrays to each column or row
applymap dataframe
map series

Sorting and Ranking

sort_index
sort_values
rank

Tie-breaking methods with rank.png

Axis Indexes with Duplicate Labels

5.3 Summarizing and Computing Descriptive Statistics

Options for reduction methods.png Descriptive and summary statistics.png

Correlation and Covariance

corr
cov
corrwith

Unique Values, Value Counts, and Membership

Unique, value counts, and set membership methods.png