Puzzles no. 569–573PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #569Today we have some random strings thate need to process in certain way. We have to count ev...

Introduction Data frames are the backbone of data analysis in R, and knowing how to efficiently process their rows is a crucial skill for any R programmer. Whether you’re cleaning data, performing calculations, or transforming values, understan...

We’re excited to introduce a new power analysis module for jamovi, designed to simplify and enhance your research planning. This module supports a broad range of statistical tests, making it a useful tool for researchers across various fields. Whether you’re conducting ANOVA, regression, mediation analysis, t-tests, correlation, proportions, ...

Gradient boosting with any regression algorithm in Python and R package mlsauce. Part3, Histogram-based boosting

Last week I ran a workshop on Parameterized plots and reports with R and Quarto as part of the R/Pharma conference, which I thoroughly enjoyed! There were lots of interesting questions from attendees during the workshop, some of which we didn’t quite have time to get to during ...

Methods for comparing spatial patterns in raster data This is the third part of a blog post series on comparing spatial patterns in raster data. More information about the whole series can be found in part one. This blog post focuses ...

How can understanding proportions transform the way you interpret data? If you're doing data analysis with R and need to break down complex frequency tables into insightful proportions, learn how to use the prop.table() function in R is the key to unlocking a new level of data understanding. Proportion ...

This week, we were talking about neural networks for the first time, and I was saying that, in many illustrations of neural networks, there was a layer with fewer neurons than predictive variables, but sometimes, it could make sense to have more neurons in the layer than predictive variables, To ...

Continuing my theme of learning all the languages, I took the opportunity of a programming puzzle to try out the same approach in a handful of different languages to compare how they work. For an upcoming APL’ers meetup the challenge was set as posed a...

Introduction For newcomers to Linux, mastering terminal commands is essential for efficient system management. Two fundamental commands that every Linux user should know are clear and history. These commands help maintain a clean workspace and ...

For a side project I needed to scrape data for the NYSE Composite Index going back as far as possible.

You’ve probably been there — mention to someone that you work with data, and they say, “Oh, so you just make tables?” Tables, right? How hard could it be? It’s just rows and columns. But we know better, don’t we? Tables aren’t just a random dumping gro...

Introduction In the ever-evolving landscape of R programming, packages continually refine their capabilities to meet the growing demands of data analysts and researchers. Today, we’re excited to announce the release of RandomWalker version 0.2....

In a previous post I looked at retrieving a list of assets from the Alpaca API using the {alpacar} R package. Now we’ll explore how to retrieve historical and current price data.

Introduction When starting your journey in C programming, understanding how to perform mathematical operations is fundamental. Whether you’re calculating simple arithmetic or complex mathematical expressions, C provides powerful tools and opera...

#227–228PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #227We are given two tables one with employees data, and second with conditional assignment of salary. The...

 This is reposted from the original at https://blog.stephenturner.us/p/python-for-r-users.---A Google search for “R vs Python” returns thousands of hits across sites like Reddit, IBM, Datacamp, Coursera, Kaggle, and many others. A quick Googl...

It does not seem to be a safe entry point for the S&P 500 market ahead of the FED rate cuts. Source code: