1907 search results for "RStudio"

R Programming – Pitfalls to avoid (Part 1)

September 5, 2016
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R Programming – Pitfalls to avoid (Part 1)

As we continue to program in R, all of us would have inevitably encountered multiple errors or bugs in our code. Not all programming errors are created equal – Many of the errors we encounter are pretty straight-forward to deal with, with clear, unambiguous error messages that a little googling (or reading the help documentation) Related Post

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Shiny and Leaflet for Visualization Awards

September 4, 2016
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Shiny and Leaflet for Visualization Awards

Next week will be the meeting of the German (and Swiss and Austrians) ecologists in Marburg and the organizing team launched a visualization contest based on spatial data of the stores present in the city. Nadja Simons and I decided to enter the contest, our idea was to link the store data to the city … Continue...

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Updated R Markdown thesis template

September 1, 2016
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Updated R Markdown thesis template

In October of 2015, I released an R Markdown senior thesis template R package and discussed it in the blogpost here. It was well-received by students and faculty that worked with it and this past summer I worked on updating … Continue reading →

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forcats 0.1.0 🐈🐈🐈🐈

August 31, 2016
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forcats 0.1.0 🐈🐈🐈🐈

I’m excited to announce forcats, a new package for categorical variables, or factors. Factors have a bad rap in R because they often turn up when you don’t want them. That’s because historically, factors were more convenient than character vectors, as discussed in stringsAsFactors: An unauthorized biography by Roger Peng, and stringsAsFactors = <sigh> by Thomas Lumley. If you use packages from

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10 featured R jobs from around the world (2016-08-30)

August 30, 2016
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10 featured R jobs from around the world (2016-08-30)

Here are the new R Jobs for 2016-08-30. To post your R job on the next post Just visit this link and post a new R job to the R community. You can either post a job for free (which works great), or pay $50 to have your job featured (and get extra exposure). Current R jobs Job seekers: please follow the links below to learn more and...

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tibble 1.2.0

August 29, 2016
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tibble 1.2.0

We’re proud to announce version 1.2.0 of the tibble package. Tibbles are a modern reimagining of the data frame, keeping what time has shown to be effective, and throwing out what is not. Grab the latest version with: install.packages("tibble") This is mostly a maintenance release, with the following major changes: More options for adding individual

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Shiny tips & tricks for improving your apps and solving common problems

August 29, 2016
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Shiny tips & tricks for improving your apps and solving common problems

This document contains a collection of various Shiny tricks that I commonly use or that I know many people ask about. Each link contains a complete functional Shiny app that demonstrates how to perform a non trivial task in Shiny. The complet...

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Analysis of the #7FavPackages hashtag

August 26, 2016
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Analysis of the #7FavPackages hashtag

Twitter has seen a recent trend of “first 7” and “favorite 7” hashtags, like #7FirstJobs and #7FavFilms. Last week I added one to the mix, about my 7 favorite R packages: devtoolsdplyrggplot2knitrRcpprmarkdownshiny#7FavPackages #rstats— David Robinson (@drob) August 16, 2016 Hadley Wickham agreed to share his own, but on one condition:

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Five ways to calculate internal consistency

August 26, 2016
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Five ways to calculate internal consistency

Let’s get psychometric and learn a range of ways to compute the internal consistency of a test or questionnaire in R. We’ll be covering: Average inter-item correlation Average item-total correlation Cronbach’s alpha Split-half reliability (adjusted using the Spearman–Brown prophecy formula) Composite reliability If you’re unfamiliar with any of these, here are some resources to get...

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Simple Guide to S3 Methods

August 25, 2016
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Simple Guide to S3 Methods

So I’ve just submitted my first article to the R Journal! The paper, “A Simple Guide to S3 Methods”, is my attempt at a quick and simple guide to using S3 methods in R. Although not my first publication, it is my first solo publication, whi...

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