Little useless-useful R functions – Drawing calendar
This time around, since first half of the 2021 is behind us, we are making Calendar in R. This will be achieved with two useless functions. Function to draw a...continue reading.
Category: R
The Elon Musk Tweet Effect on Dogecoin (DOGE)
Unveil the Dogefather Elon Musk is known for his regular tweets about many different topics—in particular his companies Tesla and SpaceX. With close to 60 million followers he truly is...continue reading.
Little useless-useful R functions – Colourful ggplot line graphs
How about some colours in line graph? Or even more wacky? Nevertheless, let’s create a function that generates some sample “mocked” data and draws a line chart: And run all...continue reading.
multinomial but unique
A quick riddle from the Riddler, where the multinomial M(n¹,n²,100-n¹-n²) probability of getting three different labels out of three possible ones out of three draws is 20%, inducing a single...continue reading.
User Tests – Build Better Shiny Apps with Effective User Testing
Why User Tests useR! 2021 Presentation: How to Conduct Effective User Tests Good Practices Q&A From Maria’s Presentation at UseR! 2021 useR! 2021 Follow Up Why User Tests User tests...continue reading.
Starting to think about AI Fairness
The topic of AI fairness metrics is as important to society as it is confusing. Confusing it is due to a number of reasons: terminological proliferation, abundance of formulae, and...continue reading.
Data Validation With data.validator: An Open-Source Package from Appsilon
Why Data Validation Data validation is a crucial step in any data science project. It ensures clean and well-formatted data that is ready for input pipelines to ML models and...continue reading.
Little useless-useful R functions – Is it raining yet?
Summer. Sunny weather. Vitamin D. And if you are missing vitamin Rain because you are growing a garden or simply want an inner cooling, hit this useless function to see,...continue reading.
Little useless-useful R functions – Inserting variable values into strings
Another useless function that could be found in many programming languages. For example typical Python sample, that everyone have encountered would be: Resulting in a string with: My Name is...continue reading.
Snecko eye lets you play more cards
A simulation study of the mighty *Slay the Spire* reliccontinue reading.
sparklyr.sedona: A sparklyr extension for analyzing geospatial data
We are excited to announce the availability of sparklyr.sedona, a sparklyr extension making geospatial functionalities of the Apache Sedona library easily accessible from R.continue reading.
almost reversed 2-lag Markov chain
Another simple riddle from the Riddler: take a binary sequence and associate to this sequence a score vector made of the numbers of consecutive ones from each position. If the...continue reading.
shiny.fluent Video Tutorial: Building Beautiful Shiny Apps
Build Beautiful Shiny Apps – A Live Coding Session at BostonR Thank you to all the attendees who joined Kamil Żyła’s live coding session at the BostonR June meetup! If...continue reading.
sparklyr 1.7: New data sources and spark_apply() capabilities, better interfaces for sparklyr extensions, and more!
Sparklyr 1.7 delivers much-anticipated improvements, including R interfaces for image and binary data sources, several new spark_apply() capabilities, and better integration with sparklyr extensions.continue reading.
breaking sticks of various length
A riddle from the Riddler with a variation on the theme of breaking sticks: Given a stick of length L, what is the optimal manner to break said stick to...continue reading.
Full Workspace Automation through a Programmatic Interface (API) Available Now
Each workspace already is an API QBit Workspace is a new service to immediately deploy data science results at scale. You can think of it as an online data science...continue reading.
Note (2) for DESeq2 time series data analysis
More notes on using LRT to test time-series data. Thanks for the discussion with Jie. swapping the levels of time factor won’t change the LRT results, as if the time variable...continue reading.
Spatially weighted averages in R with sf
Spatial joins allow to augment one spatial dataset with information from another spatial dataset by linking overlapping features. In this … Read More →continue reading.
Speeding Up R Shiny – The Definitive Guide
Better App Performance – It Can Be Done! Prototyping apps in Shiny is fast and easy, but once an app grows, performance issues may arise. Speeding up Shiny is possible...continue reading.
