ANN: Tabular Asa

[massung]

I just released Tabular Asa - an efficient, column-oriented, immutable dataframes implementation for Racket. Feature set includes:

• B-tree indexes (scannable)
• Generic sorting (an orderable generic type)
• Joining (inner & outer)
• Grouping
• Aggregating
• Everything is a sequence: tables, columns, indexes, groups, etc.
• Read/write CSV & JSON (columns, records, and lines)

The code is also written to be threaded and combine nicely with the plot module. For example:

(plot (discrete-histogram (~> (call-with-input-file "books.csv" table-read/csv)
                              (table-groupby '(Genre))
                              (group-count)
                              (table-cut '(Genre Title))
                              (table-rows))))

[pmatos]

Thanks.