5.1 Introduction to pandas Data Structures
series
dataframe
index objects
5.2 Essential Functionality
Reindexing
Dropping Entries from an Axis
Indexing, Selection, and Filtering
Integer Indexes
Arithmetic and Data Alignment
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
Axis Indexes with Duplicate Labels
5.3 Summarizing and Computing Descriptive Statistics
Correlation and Covariance
corr
cov
corrwith