November 2018
Intermediate to advanced
460 pages
14h 1m
English
Content preview from Julia 1.0 Programming Cookbook
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The DataFramesMeta.jl package defines the following basic operations relating to data frames:
- @with allows column names to be referenced as symbols
- @where filters rows
- @select selects and transforms columns
- @transform adds new columns
- @by_row performs row-wise operations
- @orderby sorts rows
- @by performs aggregation of groups in a data frame
- @based_on performs aggregation of a grouped data frame
- @linq allows for chaining of data frame operations
You can find more details about these functions at https://github.com/JuliaStats/DataFramesMeta.jl.
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