Data import and processing Data import Retrieving data from imported files I/O functions Working with WorkspaceArray in Engee DataFrames.jl DataFrames.jl First Steps with DataFrames.jl User’s Guide Getting Started Working with Data Frames Importing and Exporting Data (I/O) Database-Style Joins The Split-Apply-Combine Strategy Reshaping and Pivoting Data Sorting Categorical Data Missing Data Data manipulation frameworks Comparisons API Types Functions Indexing Metadata Internals File formats MAT.jl MAT Methods JLD2.jl Julia Data Format - JLD2 Custom Serialization Compression Internals & Design HDF5 Compatibility Advanced Usage Legacy XLSX.jl XLSX.jl Tutorial API Reference Migration Guides CSV.jl CSV.jl Documentation Reading Writing Examples WAV.jl Introduction API