Emil Hvitfeldt
LightNews LightNews
banner
emilhvitfeldt.bsky.social
Emil Hvitfeldt
@emilhvitfeldt.bsky.social
5.2K followers 920 following 350 posts
https://emilhvitfeldt.com/

making modeling easier in #rstats with tidymodels at @posit.co

writing about feature engineering (https://feaz-book.com/) and Slidecrafting. He/Him
Posts Replies Media Videos
emilhvitfeldt.bsky.social
making cute little hexes for my data packages just make sense
hex sticker with a number of different animals, in a orange border
November 20, 2025 at 6:21 PM
emilhvitfeldt.bsky.social
I did a craft! cross stitched our little recipes cupcake
picture of cross stitch hoop, with recipes hex sticker in it. pictures a cupcake with its hands raised
November 17, 2025 at 6:36 PM
emilhvitfeldt.bsky.social
If you, like me, can't remember all the Sass variables when creating #quarto #revealjs slides. I found a semi hacky way to help myself here.

Using code snippets in VS Code & Positron allow us to get pretty good completion in our style sheets

slidecrafting-book.com/miscellaneou...
November 17, 2025 at 6:09 PM
emilhvitfeldt.bsky.social
oh no, i had another idea
November 7, 2025 at 11:21 PM
emilhvitfeldt.bsky.social
So i might have discovered a way to make new transition/fragments in revealjs slides. Maybe a little ⭐ transition is on the horizon
November 7, 2025 at 5:30 PM
emilhvitfeldt.bsky.social
If you go to my slidecrafting book you will no longer see this callout box. This is because we now include examples of how to use fragments to advance tabsets of any lengths in quarto revealjs slides

slidecrafting-book.com/fragments#ta...
#quarto
Screenshot of callout box that is being cross out
October 23, 2025 at 6:14 PM
emilhvitfeldt.bsky.social
As I have been writing slides with quarto and reveal.js I found myself writing similar styling code. I have finally gotten myself together and extracted some of those classes out into an Quarto extension. Heavily inspired by tailwindcss

github.com/EmilHvitfeld...
Screenshot of color classes in use and their source code
October 21, 2025 at 8:10 PM
emilhvitfeldt.bsky.social
Gave a talk about orbital last week at Socal RUG, it was delightful as always to spend time with these people.

Slides: emilhvitfeldt.github.io/talk-orbital...
Recording: www.youtube.com/live/pm-Ve3w...
screenshot of title slide. Reads "stop horsing around. ship the query! using orbital to run predictions in the database"
October 20, 2025 at 6:31 PM
emilhvitfeldt.bsky.social
Added a new section to my slidecrafting book about how to use CSS to change the code syntax highlighting to better match your theme colors

slidecrafting-book.com/colors#code-...
screenshot of syntax highlighted code. a before and after picture has been spliced together
September 26, 2025 at 5:17 PM
emilhvitfeldt.bsky.social
Quick little update to quarto-revealjs-editable

Now works with `::: editable` in addition to `::: {.editable}`. Not shown in gif.
github.com/EmilHvitfeld...
#quarto
September 25, 2025 at 1:33 AM
emilhvitfeldt.bsky.social
i do something similar, but by repeating single characters instead
x <- read_csv(...) xx <- x |> filter(...) |> mutate(...) xxx <- ggplot(xx, aes(...)) + geom_whatever() xxxx <- ggplot(xx, aes(...)) + geom_whatever() library(patchwork) xxxxxx <- xxx + xxxx ggsave(xxxxxx)
September 24, 2025 at 11:46 PM
emilhvitfeldt.bsky.social
I'm exited to announce a new resource about making slides with quarto and revealjs. This book is the combination of all the work I have done in this area, reordered and polished up

There isn't a lot of new information yet, but this format allows me to add more easily

slidecrafting-book.com
#quarto
Screenshot of first page of slidecrafting-book.com website
September 24, 2025 at 4:12 PM
emilhvitfeldt.bsky.social
I’m excited for #PositConf2025 next week! Can’t wait to talk to y’all!

I wanna hear what you are working on, and always happy to talk about what I have been up to. Especially keen to talk to people that have tried orbital about your experience.

Also bringing special edition kittymodels stickers
Picture of sticker sheet with cat themed tidymodels stickers
September 11, 2025 at 8:02 PM
emilhvitfeldt.bsky.social
Picture of chicken caesar salad with croutons
September 4, 2025 at 9:19 PM
emilhvitfeldt.bsky.social
Version 2.0.0 of quarto-revealjs-editable now lets you edit the text in divs

github.com/EmilHvitfeld...
#quarto
August 21, 2025 at 6:30 PM
emilhvitfeldt.bsky.social
Happy to announce ✨quarto-revealjs-editable✨

This fully supersedes the imagemover extension, as I back then didn't realize the potential. You can now also move, resize, change font size and alignment for text in your slides

github.com/EmilHvitfeld...
#quarto #slidecrafting
August 20, 2025 at 5:39 PM
emilhvitfeldt.bsky.social
Excited to share my newest quarto revealjs plugin: imagemover

Easily reposition and resize images directly in your quarto revealjs slides for a much smoother slidecrafting experience

github.com/EmilHvitfeld...
#quarto
August 13, 2025 at 7:20 PM
emilhvitfeldt.bsky.social
some light teasing for an upcoming quarto revealjs plugin I have been working on
August 12, 2025 at 7:03 PM
emilhvitfeldt.bsky.social
Slides from yesterdays talk "Don't be dense, embracing sparsity in tidymodels" are live if you are interested!

emilhvitfeldt.github.io/talk-slc-spa...
Screenshot of title slides. Reads: Don't be dense! Embracing sparsity in tidymodels Emil Hvitfeldt Salt Lake City R Users Group
July 23, 2025 at 11:20 PM
emilhvitfeldt.bsky.social
Now that conference season is upon us, I'm to share some of my slidecrafting projects and tips.

If you really care about having images line up perfectly with with the slides? use this #quarto revealjs template. It was inspired by xaringan in design

github.com/emilhvitfeld...
June 4, 2025 at 2:53 PM
emilhvitfeldt.bsky.social
I also got carried away and created a new hex for one of my favorite data sets
github.com/emilhvitfeld...
hex design for animals package. a number of zoo animals looking and smiling
May 9, 2025 at 7:37 AM
emilhvitfeldt.bsky.social
while was i working on this i decided to fully overhaul some of the designs
Before and after for ferriswheels hex Before and after for palette2vec hex Before and after for roundabouts hex Before and after for xaringan hex
May 9, 2025 at 7:37 AM
emilhvitfeldt.bsky.social
and it was some really badly optimized hexes, with insane reductions in svg sizes
Screenshot of table with 4 columns: name, before, after, and reduction. name contains names of packages, before and after shows the file size before and after, reduction is a numeric value denoting how much reduced the file size is. most of the us over 0.95 with 4 of them being more than 0.99
May 9, 2025 at 7:37 AM
emilhvitfeldt.bsky.social
Turns out I created some pretty badly optimized hexes before I learned Adobe Illustrator. Knowing what i know now I recreated all my hexes to be more space efficient

github.com/emilhvitfeld...
Grid of 18 hex stickers for R packages.
May 9, 2025 at 7:37 AM
emilhvitfeldt.bsky.social
If you visited feaz-book.com lately you might have seen a new navigation button. This little die when pressed sends you to a random populated chapter. Perfect for when you wanna wander and learn
Screenshot of action menu. Text reads "Feature Engineering A-Z", below are 3 buttons, one for Github, one for collapsing, and one picturing a die
April 21, 2025 at 5:47 PM