Documentation enhancements for Deephaven Community

Deephaven's API continues to grow with each release, as does the base of documentation supporting it. In addition to documenting brand-new features, we continue to revise and expand existing documentation. Read on to learn about some of the most significant recent changes to the Deephaven documentation.

New features

Documentation of brand-new features includes:

• Rolling Formula reference documentation and an update_by user guide.
• AggWavg for rollup tables. See the reference documentation and rollup tables user guide.
• Function-generated tables. See the reference documentation and how-to guide.
• Partitioned tables. See the new user guide.
• New EmStd methods. See the reference documentation.
• Reference documentation and a user guide for partitioned_transform.

Community Questions

We've added a new section for Community Questions. Here, you'll find answers from the Deephaven team to frequently asked user questions. If you have a question, feel free to ask us on Slack.

Guides

New additions to the Deephaven user guide include:

• A new, comprehensive conceptual guide on working with time in Deephaven.
• New documentation on exact and relational joins and time-series and range joins.
• A how-to guide on computing Bollinger Bands.
• A guide for Python users on readings Javadocs.
• Coverage of table metadata methods.

Reference

New reference documents include:

• Auto-imported functions.
• The to_pandas and to_table methods for converting to and from Pandas DataFrames.
• Formatting methods: format_column_where and format_row_where.
• Aggregation methods: weighted_avg_by and weighted_sum_by.

Fully revised docs

Deephaven's documentation team has been working hard on a large-scale overhaul of existing documentation. Fully revised documents include:

• The Quickstart and advanced install guides.
• How to sort, filter, and merge data.
• Importing and exporting CSVs and other delimited files.
• How to replay data.
• How to create tree tables and input tables.

Reach out

Do you want to request other articles or additions to the documentation? Talk to us on Slack.