non-equi joins in data.table

December 21, 2023 | HighlandR

I have been toying with some of the advent of code challenges (I am way behind though!). For day 5, I had to create a function, and I’m writing this up, because it’s an example of a non-equi join between two tables. In this particular sitat... [Read more...]

Time constraints in the mlr3 ecosystem

December 20, 2023 | Marc Becker

Scope Setting time limits is an important consideration when tuning unreliable or unstable learning algorithms and when working on shared computing resources. The mlr3 ecosystem provides several mechanisms for setting time constraints for indivi... [Read more...]

Create New Variables in R with dplyr

December 20, 2023 | Zubair Goraya

Key TakeawaysThe mutate function from the dplyr package allows you to create new variables or modify existing variables in a data frame or a tibble in R.The variants of mutate, such as mutate_all, mutate_at, mutate_if, and mutate_across, allow you to a...
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Comparing many Models with Fast Regression

December 20, 2023 | Selcuk Disci

The banking sector has risen since the passing of the orthodox economic policies in Turkey. This article will analyze and model an exchange-traded fund tracking the Turkish banking index for projection for the upcoming year. The anomaly plot of the fund prices confirms that shifting the policies has recently moved ...
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PowerQuery Puzzle solved with R

December 19, 2023 | Numbers around us

# 139–140Puzzles:PQ_139: content filePQ_140: content fileI noticed that usually Power Query puzzles are about time. Does it really a case in PQ that time related calculations are hard or tricky?PQ_139In this puzzle we have to extract informations about...
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A three-arm trial using two-step randomization

December 18, 2023 | Keith Goldfeld

Clinical Decision Support (CDS) tools are systems created to support clinical decision-making. Health care professionals using these tools can get guidance about diagnostic and treatment options when providing care to a patient. I’m currently involved with designing a trial focused on comparing a standard CDS tool with an enhanced ...
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Understanding Lists in R Programming

December 18, 2023 | M. Fatih Tüzen

Introduction R, a powerful statistical programming language, offers various data structures, and among them, lists stand out for their versatility and flexibility. Lists are collections of elements that can store different data types, makin...
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R Solution for Excel Puzzles

December 18, 2023 | Numbers around us

Puzzles no. 339–343PuzzlesAuthor: ExcelBIPuzzles:#344: content file#345: content file#346: content file#347: content file#348: content fileLet dig in those numbers.Puzzle #344I am sure that you have heard about palindrome, but did you know katadromes? ...
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