nolanzandi/virtual-data-analyst · Feature Releases and Plans

UPDATE: There haven't been any releases for a while due to the fact that I'm working on a larger feature release centered around being able to talk to APIs and live data. This is a larger project and will likely take a couple months. However, don't hesitate to report bugs or ideas that you have. I will prioritize bugs over anything and could consider upgrades if they are useful to take a break from the larger project.

Feel free to request features that would be helpful to you or report issues with released features

Recent Bugfixes:

Showing errors on data file upload so user isn't stuck with a nonfunctional chat window 3/4/2025
Released refactor to get more accurate LLM responses (especially when generating charts/graphs) and fewer errored responses 2/25/2025
Fixed bug where conversations between sessions were mixing together and messages from old sessions were still being processed by llm 2/21/2025
Fixed bug where missing package prevented XLSX file upload 2/17/2025
Fixed bug where datetime fields were written as strings and were not quarriable 2/15/2025

Releases:

Added an integration for GraphQL API endpoints and queries in a live setting - 5/10/2025
Added an integration for NoSQL document databases (MongoDB for now, can add more if requested) to be able to connect to JSON data in a live data source - 5/4/2025
Added an integration for SQL databases (PostgreSQL for now, can add more if requested) to be able to speak to a live data source - 4/18/2025
Added new size option to scatter plots to generate bubble charts 3/11/2025
Added pie charts and histograms. Added new options to scatter plots to allow for trendlines, and marginal analysis. 3/9/2025
Released a regression function to run (currently linear) regressions on data and answer questions about relationships to variables 3/3/2025
Released a refactor to allow much larger data queries, to prevent the results of queries from passing through llm and creating API errors. Should increase speed of responses as well 3/3/2025
Allowed for tabular formatting 2/25/2025
Updated charts and graphs to use Plotly and be locally hosted 2/25/2025
Json files are flattened and normalized so nested json can be uploaded to Sqlite. Useful to process log data although this instance likely doesn't have enough compute to process large logfiles (which was my usecase for building this feature) 2/20/2025
Charts and graphs are dynamic and link to Quickchart where they can be edited and shared 2/18/2025
Ability to generate charts and graphs (images) 2/17/2025
Generate recommended sample questions on data upload that could uncover data insights 2/16/2025
Ability to upload new data file formats (CSV, TSV, TXT, XLS, XLSX, XML, and JSON) 2/15/2025
Allow for simultaneous users (no more shared data file) 2/13/2025
Example datasets to make it easier to demo 2/14/2025

Upcoming:

Visual and UX enhancements: will be released piecemeal alongside other projects
Talk to live data: Allow for REST API queries and the ability to connect to an API instead of a data file (low structure, hardest)
Talk to live data: Add additional SQL database connectors
Talk to live data: Add additional document database connectors
Allow for tables to be downloaded in CSV once generated
Add/Update new functions for statistical analysis such as linear regression, r values, chi squared etc
Adding and enhancing visualization types and options (bubble charts, heatmaps, subplots, etc)
Allow for custom controls on visualization generation
Enable voice transcription to allow user to speak to Virtual Data Analyst
Allow for created DB files to be downloaded and/or exposed with URL

Medium Term:

Setup unit tests to reduce bug incidences
Add additional models and setup evaluators to improve response quality
Be able to upload data to a NoSQL instead of SQLite database if appropriate (more db types, better than flattening files for nested Json)

Long Term:

Add user profiles and permanent document storage tied to users
Multiple file evaluation that can be compared to each other
Data editing and manipulation with export
Allow users to input their own OpenAI Key and pay for their own requests