mousomashakel (u/mousomashakel)

Dead Comment

mousomashakel commented on Show HN: Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java github.com/moustafa-nasr/... · Posted by u/mousomashakel

owlstuffing · 4 months ago

Nice!

I’m currently using manifold-sql with duckdb for this.

mousomashakel · 4 months ago

Thanks! That’s a great combo — manifold-sql + duckdb gives you strong typing with powerful SQL under the hood. Fahmatrix is aiming to complement that approach for cases where you want quick, native Java code without SQL — e.g., when building data flows or custom logic inline. Would love to hear if you’ve hit any pain points that a Java-native approach could help with.

mousomashakel commented on Show HN: Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java github.com/moustafa-nasr/... · Posted by u/mousomashakel

theanonymousone · 4 months ago

Yes. It has bothered me for a long time too. Maybe the best mix is a dataframe library with basic operations (column select, non-null etc), which also allows SQL for more complex stuff?

mousomashakel · 4 months ago

Totally agree that SQL can be the best tool for many jobs. My goal with Fahmatrix is to serve the opposite niche: where devs want something that's Java-native, procedural, and simple without reaching for an external engine. SQL support or DSL might come later though — I see the appeal.

mousomashakel commented on Show HN: Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java github.com/moustafa-nasr/... · Posted by u/mousomashakel

skanga · 4 months ago

What about Tablesaw, Apache Arrow? How does this compare ...

mousomashakel · 4 months ago

Good question. I’ll publish benchmarks soon, but the core difference is that Fahmatrix is fully Java, no JNI, and minimalistic — ideal for small projects or environments like Android. Tablesaw and Arrow are more powerful, but heavier. Fahmatrix aims to be the “just enough” middle ground.

mousomashakel commented on Show HN: Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java github.com/moustafa-nasr/... · Posted by u/mousomashakel

rickette · 4 months ago

Congrats on putting this out there. There isn't a de facto pandas-like library in Java like you said. But for Kotlin there is: https://github.com/Kotlin/dataframe

mousomashakel · 4 months ago

Thanks so much! Yep, I’ve seen the Kotlin DataFrame lib — very elegant. Fahmatrix is meant for plain Java users who want similar capabilities without switching ecosystems. Appreciate the support!

mousomashakel commented on Show HN: Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java github.com/moustafa-nasr/... · Posted by u/mousomashakel

uwemaurer · 4 months ago

Always great to see efforts to make working with data frames easier. Here are some similar data frame libraries for Java:

https://github.com/jtablesaw/tablesaw

https://github.com/dflib/dflib

My preferred way is just use duckdb java API. I didn't see anything better in performance/efficiency. Also a SQL query is often easier to write

mousomashakel · 4 months ago

Thanks! I'm aware of those great projects. Fahmatrix aims to offer a lightweight, dependency-free alternative that’s easy to embed in any Java app. DuckDB is super impressive, especially for SQL-heavy tasks — but my goal is more about a native, fluent API for those who prefer direct Java code over SQL.

Posted by u/mousomashakel 4 months ago

Show HN: Fahmatrix – A Lightweight, Pandas-Like DataFrame Library for Java github.com/moustafa-nasr/...

u/mousomashakel

KarmaCake day16May 17, 2025View Original