Viewing profile — kengoa

Nice list! I remember HN talking about https://students.brown.edu/seeing-theory/ when it came out but sadly it seems like this website was discomissioned. Added an entry for my dat…

Amazing work! Reminded me of LLM Visualization ( https://bbycroft.net/llm ) except this is a lot easier to wrap my head around and that I can actually run the training loops, which…

Understanding Python's data model helped me become a better software engineer. I'd recommend watching this PyData talk (James Powell: So you want to be a Python expert? | PyData Se…

> Consequently, knowledge bottlenecks are a form of operational inefficiency in startups. This resonates with my startup experience, especially when the organisation is growing rap…

I ended up making my app installable as a PWA based on this conversation myself. Changes were straightfoward to add on top of a Vite + React application: https://github.com/visprex…

Yes as dimava commented above a PWA would be a great alternative. > in a way it can be more honest for a developer with any commercial intentions to not open source something while…

Great project! I'm also maintaining a fully in-browser data visualisation/analytics tool [1] and I often found it hard to convince people that their data isn't sent anywhere. It's …

Very interesting read, I wish more startups did postmortems like this. It seems like the authors managed to build a set of tools that provided real value that ultimately did not ma…

I encountered it during my masters in 2019 and it still remains my favourite textbook to this day.

> That year, I lost about thirty pounds due not having enough money for food. It was in this context that the lab’s principal investigator told me that his funding for my position …

Nice visualisation! Some entities seem to have "undefined" on the graph that you might want to double check.

Yes now I'm looking at the tests I can see that the coverage won't increase linearly, but 12% (with some of the hard parts) in two weeks is impressive. I starred the repo, good luc…

dayjs seems like exactly I was looking for, thanks for the suggestion! I might have tried to write a parser myself otherwise.

I will try to add more support for other data formats like xlsx and parquet in the future. Current CSV parsing is also a bit limited (i.e. cannot deal with timestamps) so I will tr…

Thanks for commenting this, I would say speeding up the iteration between visualisation steps is the main benefit as you might not want to be thinking about matplotlib syntax when …

> had to rely on tools like Google Sheets or Colab + Pandas for quick cleaning and wrangling before exploring different visualizations. Yes I had the same experience for analytics …

I'm very glad to hear this as this is exactly the target audience and the use case I initially thought of! I hope your students find it useful.

Yes I do have plans for data preprocessing using DuckDB WebAssembly (I have upcoming features secion in this blog: https://kengoa.github.io/software/2024/11/03/small-software.... )…

I used d3.js for Visprex and some of those graphs are modified from examples in https://d3-graph-gallery.com/

> how this compares to a spreadsheet CSV import tool such as the one in Excel which is extremely flexible. I would say the data loading functionality compares very poorly to Excel …

I haven't considered beeswarm charts for this before, I will add those to a list of upcoming features. Thanks for the feedback :)

Thanks for trying it out! This is unfortunately not possible as of now and is one of th high-priority tasks to parse timestamps and datetimes, which is now incorrectly parsed as a …