Julia on blog.nath.page

SDS Project Configuration 4 - DuckDB

Tue, 25 Aug 2026 00:00:00 +0000

Needed Some SQL

Ran into a minor hiccup while performing some exploratory data analysis. The type of my columns was wrong. This is the kind of thing I want fixed before Python, R, or Julia touch the dataset. This is the kind of thing that would be suited for SQL.

I have used MySQL for a different task that involves frequent updating. DuckDB is more suited for static data analysis. That ended up driving the choice of DuckDB. The CLI outputs are excellent. There are integrations available for Python, R, and Julia.

SDS Project Configuration 3 - Setting Environments Within Notebooks

Mon, 24 Aug 2026 00:00:00 +0000

The setup shown in SDS Project Configuration 2 involved opening the org file and running the my/sds... functions. The order mattered. I frequently found myself defaulting to the wrong environment. Also operating from a different folder was causing issues.

It is demanding to remember that there exists a function outside that needs to be run for the notebook to work properly. With this update, I have eliminated the need to invoke those functions. This has added some extra lines in the org file itself, but all these are in the relevant notebook files. So while this is extra work during writing, there is less to remember while executing the notebooks.

SDS Project Configuration 2 - Making Sessions Work

Sun, 23 Aug 2026 00:00:00 +0000

This is continued from SDS Project Setup.

Earlier, all the three languages were working together, but the values did not transfer across code blocks. For the different blocks to be able to communicate with each other, the language needs to run in the same session. Setting this up for Python and R was straightforward, but Julia had me stuck for a long time.

The dataset used below is available at Allison Horst’s page.

SDS Project Configuration 1 - Setup

Sat, 22 Aug 2026 00:00:00 +0000

Now that I have LaTeX and computations working in Emacs Org Mode (see LaTeX with Emacs and Setting Up Computational Notebook in Emacs), it is time to create an entire Statistics and Data Science Project covering a variety of topics. This note shall document the setup process.

Prerequisites

Basic Emacs Configurations. Note Git (Magit), Org Mode, Org Babel, Vterm, and the programming languages are properly configured.
Emacs + LaTeX Configuration.
Emacs + (Python + R + Julia).

Project Structure

Create the essential folders and files inside the appropriate directory.

Setting Up Computational Notebook Functionality in Emacs Org Mode

Fri, 21 Aug 2026 00:00:00 +0000

In the equations rendering challenge described in LaTeX With Emacs, org-fragtog came to the rescue, finally providing something to toggle between mathematical symbols and LaTeX code. But a computational notebook needs more than just mathematical equations rendered properly. It needs to be able to display and run code. Specifically, in my case, it needs to be able to run Python, R, and Julia.

Code Blocks

In Org Mode, #begin_src language ..... #end_src allows for code to be written and displayed correctly. For example: