I often create character variables (i.e. variables with strings of text as their values) in SAS, and they sometimes don’t render as expected. Here is an example involving the built-in data set SASHELP.CLASS. Here is the code: data c1; set sashelp.class; * define a new character variable to classify someone as tall or
Data wrangling, is the process of importing, cleaning and transforming raw data into actionable information for analysis. It is a time-consuming process which is estimated to take about 60-80%...
Preamble There is a lot of confusion among practitioners regarding the concept of overfitting. It seems like, a kind of an urban legend or a meme, a folklore is circulating in data...
A new version of MODIStsp (1.3.3) is on CRAN as of today ! Below, you can find a short description of the main improvements.Processing speed improvements Processing of...
Today, we’re continuing our blog series on new features in RStudio 1.1. If you’d like to try these features out for yourself, you can download a preview release of...
I’m pleased to announce that fiery has been updated to version 1.0 and is now available on CRAN. As the version bump suggests, this is a rather major update to...
Last year, Buzzfeed broke the story that US law enforcement agencies were using small aircraft to observe points of interest in US cities, thanks to analysis of public flight-records...
Atmospheric air pollution is one of the most important environmental concerns in many countries around the world, and it is strongly affected by meteorological conditions. Accordingly, in this set...
To master data science, you need to practice. This sounds easy enough, but in reality, many people have no idea how to practice. Ultimately, you need to .... The post Simple practice:...
Last week, version 1.0 of the magick package appeared on CRAN: an ambitious effort to modernize and simplify high quality image processing in R. This R package builds upon...
In this post, I describe a recent case where I used rlang’s tidy evaluation system to do some data-cleaning. This example is not particularly involved, but it demonstrates is a basic...
Welcome to the nineth post in the recognisably rancid R randomness series, or R4 for short. Following on the heels of last week's post, we aim to look into...
rstudio::conf, the conference on all things R and RStudio, will take place February 2 and 3, 2018 in San Diego, California, preceded by Training Days on January 31 and...
Timo Grossenbacher, data journalist with Swiss Radio and TV in Zurich, had a bit of a surprise when he attempted to recreate the results of one of the R...
A new version of the acs package is now on CRAN. I recommend that all users of choroplethr update to this version. Here is how to... The post acs v2.1.1 is...
@drsimonj here to share my code for using Welch’s t-test to compare group means using summary statistics. Motivation I’ve just started working with A/B tests that use big data. Where once...
When monitoring a data source, model, or other automated process, it’s convienent to have method for easily delivering performance metrics and notifying you whenever something is amiss. One option...
The Stan project for statistical computation has a great collection of curated case studies which anybody can contribute to, maybe even me, I was thinking. But I don’t have...
By Gabriel Vasconcelos When I first started using R there was no such thing as the tidyverse. Although some of the tidyverse packages were available independently, I learned to...
Post by Adi Sarid (Sarid Institute for Research Services LTD.) Lately I’ve been working a lot with the shinydashboard library. Like shiny, it allows any R programmer to harness the power...
Background From time to time I have wanted to bring an online table into an R dataframe. While in principle, the data can be cut and paste into Excel,...
We are very excited to announce a new (paid) Win-Vector LLC video training course: Supervised Learning in R: Regression now available on DataCamp The course is primarily authored by...
ggplot2 is kind of a household word for R users. I’ve ended up using it for complex data munging and wrangling work, where I needed to get clarity on...
RProtoBuf provides R bindings for the Google Protocol Buffers ("ProtoBuf") data encoding and serialization library used and released by Google, and deployed fairly widely in numerous projects as a...
Statistics are often taught in school by and for people who like Mathematics. As a consequence, in those class emphasis is put on leaning equations, solving calculus problems and...
Published: 2016-11-30 Updated: 2017-08-14 "Any bleeder knows that books are never finished, only abandoned." César A. Hidalgo About the book You can find the book here. In the last update we changed...
(General reminder abt “R⁶” posts in that they are heavy on code-examples, minimal on expository. I try to design them with 2-3 “nuggets” embedded for those who take the...
I’m very happy to announce that reqres has been released on CRAN. reqres is a new (in R context) approach to working with HTTP messages, that is, the requests you...
Back in August 2011, Hurricane Irene struck the mid-Atlantic coast. This animated graph shows how the storm surge from Irene and the terrestrial flooding from Irene and Tropical Storm...
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