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Yan Holtz Profile picture
@R_Graph_Gallery
Sep 2, 2021 • 7 tweets • 7 min read • Read on X
Scrolly
✨I'm so proud to be back with a load of terrific #RStats and #Python3 charts, in collaboration with many highly talented people 🤓

🙏@CedScherer, @geokaramanis, @toeb18, @ClausWilke, @CaprettoTomas 🙏

A thread 🧵
🍾3 more charts by @CedScherer who's now having a pretty good exposition in the gallery🤓. Including stream chart, lollipop and line chart.

A sample of links:
🐍 stream: python-graph-gallery.com/streamchart/
🐍 lollipop: python-graph-gallery.com/lollipop-plot/
R line: r-graph-gallery.com/line-plot.html
☀️Since I love circular barcharts I couldn't miss the opportunity to add this work by @toeb18 on hiking location:

R: bit.ly/3kO1zAH
Python: bit.ly/3yDGy0s
Next piece is by @geokaramanis and greatly uses geo-faceting. Some more work by Georgios will definitely come😉

R: bit.ly/3BC0iDv
Python: bit.ly/3DShEOu
✨Last piece for today is a scatterplot with smoothing line and clean non-overlapping labels by @ClausWilke

R: bit.ly/3yzZHAg
Python: bit.ly/3nc5gTF
Most important part of this tweet: thanks heaps to the authors featured here for sharing their work!
🙏🙏🙏

And to @CaprettoTomas who's doing an amazing job for the python translation👏
I genuinely hope it helps increasing the author visibility, and that R/Python users can benefit this in their every-day job!

Don't forget new entries are always welcome!

🌙 It's late, see you at the next chart load! 🚢

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More from @R_Graph_Gallery

Yan Holtz Profile picture
Oct 15
You can create data reports that are... meh,

OR invest 11 minutes in those tricks:

1️⃣ With plotly, your ggplot2 chart becomes interactive instantly.
(1.5 minutes - 2 lines of code)

🧵
2️⃣ With DT, include your dataset as a filterable, sortable, searchable table
(1.5 minutes - 2 lines of code)

3️⃣ Add a bit of CSS to fit your brand and add some space between titles
(3 minutes - 10 lines of code)
4️⃣ Use tabs when many charts are required to save real estate
(2 minutes - 3 lines of code)

5️⃣ Not everyone wants to read the code. Fold it and annotate it! (30 secs - 3 lines of code)
Read 5 tweets
Yan Holtz Profile picture
Mar 13
You're starting a new Data Analysis project with #rstats or #pythonprogramming.

➡️How do you organise your work files? 🤔

Here is a thread about how I do it.

Any other best practice you use??

🧵 Image
1️⃣
Start with a "Input" folder
- Put your raw data in it. And NEVER edit it manually again.
- Make sure ALL the dataset required for the project are here. Your project must be self contained
2️⃣
Then create a "R" or "Python" folder with ALL your scripts.
Those scripts read the data, analyse them, and create outputs.
Read 9 tweets
Yan Holtz Profile picture
Jan 4, 2023
My beginner/intermediate #Rstats friends often ask me for tips.

➡️Here is the 'dream pipeline' I use for my data analysis, ending with a clean, interactive, online report:

🧵..
Let's take a famous dataset: relationship between
- GDP per capita,
- population, and
- life expectancy

⭐️Tip 1⃣: Use ggplot2 and the tidyverse to get a clean chart easily.

r-graph-gallery.com/320-the-basis-… bubble chart built with ggplot2
⭐️Tip 2⃣: make this graph interactive with ONLY 1 additional line of code 😍! I promise, just 1 more.

Thanks to the plotly package and its ggplotly() function.

You now have the details of each circle in a tooltip.

r-graph-gallery.com/bubble-chart.h…
Read 8 tweets
Yan Holtz Profile picture
Jan 3, 2023
👋Are you interested in #dataviz?

⭐️I created 8 free online projects on the topic!😀

Please let me introduce them:

🧵.. A classification of chart types based on input data format
Everything started with the R graph gallery:

A collection of hundreds of graphs made with #rstats, always with explanation and code. (often using ggplot2)

r-graph-gallery.com
Since it worked well, I created the equivalent for all my #pythonprogramming friends!

@matplotlib and Seaborn are very good tool too!

python-graph-gallery.com
Read 10 tweets
Yan Holtz Profile picture
May 11, 2022
👋 I've made a new #dataviz related website! 😀

It's called☀️dataviz-inspiration.com: a list of many stunning Viz projects I love💜

🧵 dataviz-inspiration.com lis...
➡️For now, about 100 projects are showcased, resulting in ~150 beautiful graph examples.

📈But I will make it grow every day, instead of filling my bookmarks tab 😀 Image
🔎You can filter items based on chart types.

Let's say you have a #heatmap to build, it can be handy to see what people have made before you!

Chart classification is based on data-to-viz.com Image
Read 6 tweets
Yan Holtz Profile picture
Oct 6, 2021
👋 I have 5 new @matplotlib python tutorials for #Dataviz 🤓
➡️stream chart, grouped barplot, histogram, linear regression and dual Y axis

python-graph-gallery.com

🧵
1⃣First one is about streamgraph. There is much more manual work involved than with #Rstats

python-graph-gallery.com/streamchart-ba…
2⃣ How to build a chart with 2 Y axes. A bad practice 99% of the time but still requested by many ppl so...

python-graph-gallery.com/streamchart-ba…
Read 7 tweets

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