Notes from a data witch

A data science blog by Danielle Navarro

Generative art with grid
Art
R
grid
I decided it was time to learn more about the grid package in R, and so naturally used it to make generative art
Danielle Navarro
Mar 31, 2023

Shattered landscapes
Art
R
Using ambient and rayshader to create weird, broken landcape images in R
Danielle Navarro
Mar 13, 2023

Fun and games with p5.js and observable.js in quarto
Art
P5
Observable
Javascript
Quarto
Okay it’s a short post in which I teach myself a bit of p5.js, but it does have five different donut examples which seems cool?
Danielle Navarro
Jan 14, 2023

Deploying R with kubernetes
R
Docker
Kubernetes
Plumber
In which it is painfully clear that the author is trying to figure it all out as she goes
Danielle Navarro
Jan 10, 2023

Playing with docker and the github container registry
Linux
R
Docker
In which the author learns how to use docker and, in her usual fashion, goes a little bit overboard. But there are also generative art whales, so that’s nice.
Danielle Navarro
Jan 1, 2023

btw I use Arch now
Linux
R
There is no reason for this.
Danielle Navarro
Dec 31, 2022

A very strange year
A wrap up of my 2022. Even by the standards of the recent past this has been a very weird year for me. A lot has happened, both professionally and personally. I’m still…
Danielle Navarro
Dec 26, 2022

Queue
Parallel Computing
R
Object-Oriented Programming
It is a truth universally acknowledged, that a post about multithreading must be in want of an async trick
Danielle Navarro
Dec 22, 2022

Crayola crayon colours
R
Data Cleaning
Data Visualisation
Am I bored in the house? Yes. And am I in the house bored? Also yes. But do I have rvest and a stubborn desire not to allow the horrors of ‘data encoded in the CSS style’ to…
Danielle Navarro
Dec 18, 2022

Unpacking Arrow Datasets
Apache Arrow
R
A comment on how Datasets work in Apache Arrow. I’m not really sure who the audience for this one. Am I just talking to myself? Probably.
Danielle Navarro
Nov 30, 2022

Everything I know about Mastodon
Mastodon
Social Media
A hastily written guide for data science folks trying to navigate the fediverse.
Danielle Navarro
Nov 3, 2022

Building an Arrow Flight server
Apache Arrow
Networking
R
Python
A step by step walkthrough introducing the reader to Arrow Flight, with examples in R and Python
Danielle Navarro
Oct 18, 2022

Data transfer between Python and R with rpy2 and Apache Arrow
Apache Arrow
R
Python
A Pythonic approach for sharing Arrow Tables between Python and R. This is the second in a two-part series on data transfer. In this post I discuss how the rpy2 Python…
Danielle Navarro
Sep 16, 2022

Passing Arrow data between R and Python with reticulate
Apache Arrow
R
Python
In a multi-language ‘polyglot’ data science world, it becomes important that we are able to pass large data sets efficiently from one language to another without making…
Danielle Navarro
Sep 9, 2022

Sudo ask me a password
Linux
Credentials
R
Resolving a little quirk in managing packages with pak on linux
Danielle Navarro
Sep 4, 2022

How to visualise a billion rows of data in R with Apache Arrow
Apache Arrow
Data Visualisation
R
In which the author grapples with the awkward question of what data visualisation really means when you have a staggering amount of data to work with
Danielle Navarro
Aug 23, 2022

Arrays and tables in Arrow
Apache Arrow
R
In which the author discusses arrays, chunked arrays, record batches, tables, and datasets in the R interface to Apache Arrow. Masochism is mentioned, and the music of…
Danielle Navarro
May 25, 2022

Porting a distill blog to quarto
Quarto
Blogging
Reproducibility

I have moved this blog from distill over to quarto, and taken notes. A year after starting the blog, this promises to be an interesting reproducibility test

Danielle Navarro
Apr 20, 2022

Using Amazon S3 with R
Amazon S3
R
Somehow I was convinced that using Amazon S3 would be a supremely difficult thing to learn, kind of like learning git and GitHub for the first time. Thankfully, it’s…
Danielle Navarro
Mar 17, 2022

Data types in Arrow and R
Apache Arrow
R
A post describing fundamental data types in R and Apache Arrow, and how data is exchanged between the two systems. It covers conversion of logicals, integers, floats…
Danielle Navarro
Mar 4, 2022

R scripts for twitter mutes and blocks
Twitter
R
Social Media
Social media safety tools like muting and blocking are often misused, but for people who are targeted for harassment they are powerful and important. This is a brief…
Danielle Navarro
Feb 11, 2022

Binding Apache Arrow to R
Apache Arrow
R
I’ve been learning how to program with Apache Arrow inside R, and also I have been watching the SyFy show “The Magicians” obsessively. For no sensible reason I wrote a blog…
Danielle Navarro
Jan 18, 2022

Setting CRAN repository options
R

A quick post on how to use RStudio public package manager instead of a standard CRAN mirror, and an example of why that can be useful sometimes.

Danielle Navarro
Jan 10, 2022

Getting started with Apache Arrow
Apache Arrow
R
I’ve been wanting to learn the basics of Apache Arrow a while: this is the story of how an R user learned to stop worrying and love a standardised in-memory columnar data…
Danielle Navarro
Nov 19, 2021

Data serialisation in R
Serialisation
R
A terrifying descent into madness, or, an explanation of how R serialises an in-memory data structure to summon a sequence of bytes that can be saved or transmitted.…
Danielle Navarro
Nov 15, 2021

Unpredictable paintings
Art
R
An example showing how to build a generative art system in R. The post walks through some of the creative and design choices that are involved, and highlights how much of a…
Danielle Navarro
Nov 1, 2021

Generative art resources in R
Art
R

An extremely incomplete (and probably biased) list of resources to help an aspiring generative artist get started making pretty pictures in R

Danielle Navarro
Oct 19, 2021

How to mint digital art on HEN
Art
Not every artist wants to make cryptoart, and that’s okay. Others do, and that’s okay too. But if you want to try it out in a socially responsible way, it takes a bit of…
Danielle Navarro
Sep 26, 2021

Visualising the hits of Queen Britney
Tidy Tuesday
Data Visualisation
R
A gentle walkthrough of a few data wrangling and visualisation tools using the Billboard 100 data for this weeks Tidy Tuesday. Pitched at beginners looking to refresh their…
Danielle Navarro
Sep 14, 2021

Art, jasmines, and the water colours
Art
R

An essay and tutorial covering a few useful art techniques in R

Danielle Navarro
Sep 7, 2021

Managing GitHub credentials from R, difficulty level linux
Git
Credentials
Linux
R

A sick sad story in which a humble R user was forced to learn something about how linux stores passwords and, more importantly, got R to use her GitHub credentials properly

Danielle Navarro
Aug 8, 2021

Generative art in R
Art
R

Comments on an exhibit I contributed to as part of useR!2021

Danielle Navarro
Jul 8, 2021

Bootstrap cards in distill
Blogging
Bootstrap
Distill
R

How to enable bootstrap 4 on a distill website, even though you probably don’t need to. I like it though because I get to add pretty bootstrap cards

Danielle Navarro
Apr 19, 2021

Pretty little CLIs
Command Line
R
How to make a gorgeous command line interface in R using the cli package. Somewhere along the way I accidentally learned about ANSI control codes, which strikes me as…
Danielle Navarro
Apr 18, 2021

Welcome to the jungle
Blogging
Reproducibility
Distill

I have reluctantly decided to create a new blog. Some thoughts on what I hope to achieve, having tried my hand at blogging so very many times before

Danielle Navarro
Apr 5, 2021
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