This tutorial is going to cover how to set up a temperature/humidity sensor with a raspberry pi. You will learn how to setup the sensor, a MYSQL server, and connect to the databse remotely in R. I will also do exploratory data analysis in R with the stored readings. ...

To make getting started with rquery (an advanced query generator for R) easier we have re-worked the package README for various data-sources (including SparkR!). Here are our current examples: rquery and MonetDBLite rquery and RPostgreSQL rquery and RSQLite rquery and SparkR rquery and sparklyr For the MonetDBLite the query diagrammer ...

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…Read more ›

Those outside the Colonies may not know that Payless—a national chain that made footwear affordable for millions of ‘Muricans who can’t spare $100.00 USD for a pair of shoes their 7 year old will outgrow in a year— is closing. CNBC also had a story that featured a choropleth with ...

Transitioning from Excel to R is one of the best decisions I have ever made. It accelerated my career and it boosted my productivity 10X - 100X (I show how in a Time Study - keep reading). I used Excel primarily for sales and marketing analytics. I was a power-user ...

We are pleased to introduce the descriptr package, a set of tools for generating descriptive/summary statistics. Installation

# Install release version from CRAN
install.packages("descriptr")

# Install development version from GitHub
# install.packages("devtools")
devtools::install_github("rsquaredacademy/descriptr")

Shiny App descriptr includes a shiny app which can be launched using

ds_launch_shiny_app()

or try the live version here. Read on to learn more about the features of descriptr, or see ...

We are pleased to introduce the descriptr package, a set of tools for generating descriptive/summary statistics. Installation

# Install release version from CRAN
install.packages("descriptr")

# Install development version from GitHub
# install.packages("devtools")
devtools::install_github("rsquaredacademy/descriptr")

Shiny App descriptr includes a shiny app which can be launched using

ds_launch_shiny_app()

or try the live version here. Read on to learn more about the features of descriptr, or see ...

Here are two nice exercises for a future simulation exam, seen and solved on X validated.The first one is about simulating a Gibbs sampler associated with the joint target exp{-|x|-|y|-a(y-x|} defined over IR² for a≥0 (or possibly a__-1). The conditionals are identical ...

Recently Hadley Wickham prescribed pronouncing the magrittr pipe as “then” and using right-assignment as follows: I am not sure if it is a good or bad idea. But let’s play with it a bit, and perhaps readers can submit their experience and opinions in the comments section. Right assignment ...

One of the easiest tasks in R is to get correlations between each pair of variables in a dataset. As an example, let’s take the first four columns in the ‘mtcars’ dataset, that is available within R. Getting the variances-covariances and the corr...