Blog Archives

Sudoku game with R

Sudoku is a classical logical game based on combinatorial number replacement puzzle. Objective is to to fill 9×9 matrix with digits so that each column, each row, and each box (3×3 sub-grid) of nine contain all of the digits from

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Working with Windows CMD system commands in R

From time to time, when developing in R, working and wrangling data , preparing for machine learning projects, it comes the time, one would still need to access the operating system commands from/in R. In this blog post, let’s take

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Advent of Code 2019 challenge with R

I have decided to tackle this year’s Advent Of Code using R (more or less). I know there are more preferred languages, such as Python, C#, Java, JavaScript, Go, Kotlin, C++, Elixir, but it was worth trying. Into the 8th

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Hangman game with R

Hangman is a classic word game in which you need to need to guess as many possible letters in word, so you can guess the word, before running out of tries (lives). Upon running out of tries, you are hanged!

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Finding duplicates in data frame across columns and replacing them with unique values using R

Suppose you have a dataset with many variables, and you want to check: if there are any duplicated for each of the observation replace duplicates with random value from pool of existing values.   In this manner, let’s create a

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Creating data frame using structure() function in R

Structure() function is a simple, yet powerful function that describes a given object with given attributes. It is part of base R language library, so there is no need to load any additional library. And also, since the function was

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Number 6174 or Kaprekar constant in R

Not always is the answer 42 as explained in Hitchhiker’s guide. Sometimes it is also 6174. Kaprekar number is one of those gems, that makes Mathematics fun. Indian recreational mathematician D.R.Kaprekar, found number 6174 – also known as Kaprekar constant

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Top SQL Server Bloggers 2018
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