1866 search results for "rstudio"

20 (!) new R jobs (for 2015-10-21)

October 21, 2015
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20 (!) new R jobs (for 2015-10-21)

This is the bi-monthly R-bloggers post (for 2015-10-21) for new R Jobs. To get your R job on the next post Just visit this link and post a new R job to the R community (it’s free and quick). New R jobs Job seekers: please follow the links below to learn more and apply for your job of interest (if you go to R-users.com you may see all the...

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Paging Widget for Shiny Apps

October 21, 2015
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Paging Widget for Shiny Apps

In my last post I described how I built a shiny application called “DFaceR” that used Chernoff Faces to plot multidimensional data. To improve application response time during plotting, I needed to split large datasets into more manageable “pages” to be plotted. Rather than take the path of least resistance and use either numericInput or sliderInput...

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Installing R on OS X

October 20, 2015
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Installing R on OS X

I was in a conversation with an academic colleague (wicked smart dude) and the subject of installing R came up (NOTE: this will happen to you, too, if you ever have the misfortune to have a face-to-face convo with me ;-). They noted that getting up and running with R was not as seamless as

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Introducing the dplyrXdf package

October 20, 2015
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The dplyr package is a popular toolkit for data transformation and manipulation. Over the last year and a half, dplyr has become a hot topic in the R community, for the way in which it streamlines and simplifies many common data manipulation tasks. Out of the box, dplyr supports data frames, data tables (from the data.table package), and the...

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Blogging with Rmarkdown, knitr, and Jekyll

October 19, 2015
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Blogging with Rmarkdown, knitr, and Jekyll

Blogs are some of the best R resources available. However, the paths to an efficient data-blogging workflow are many and perilous! This post walks through how I got the process down to two commands, with the forked teachings of Yihui Xie (… and how you can, too). Those two commands in full: new_post("Post title!") Creates an Rmarkdown file with the...

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trimming CTD files with shiny

October 17, 2015
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trimming CTD files with shiny

Introduction The shiny library provides a graphical user interface (GUI) for the R language that may open up new possibilities for human judgement in data filtering, as well as for the use of R by those who choose not to learn its syntax. The first category is the intended audience here, in this first of a series of blog postings about using shiny...

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Using Containerized Travis-CI to check R in RMarkdown files

October 16, 2015
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Using Containerized Travis-CI to check R in RMarkdown files

I’m teaching a short graduate seminar on Data Visualization with R this semester. Following Matt Salganik, I wanted students to be able to submit homework or other assignments as R Markdown files, but to have a way to make sure their R code passed some basic stylistic checks provided by lintr before they submitted...

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An Integrated Shiny App for a Course on Repeated Measurements Analysis

October 16, 2015
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I will be teaching a course on statistical regression models for repeated measurements data, and I thought of creating a shiny app to let students run the code used in the course and examine the output in real time.The app is still in development mode ...

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testthat 0.11.0

October 15, 2015
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testthat 0.11.0

testthat 0.11.0 is now available on CRAN. Testthat makes it easy to turn your existing informal tests into formal automated tests that you can rerun quickly and easily. Learn more at http://r-pkgs.had.co.nz/tests.html. Install the latest version with: install.packages("testthat") In this version: New expect_silent() ensures that code produces no output, messages, or warnings. expect_output(), expect_message(), expect_warning(),

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Install Shiny Server for R on Ubuntu the Right Way

October 15, 2015
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Install Shiny Server for R on Ubuntu the Right Way

Is it time to spin up a new instance of Shiny Server? This tutorial is baseed on a fresh install of Ubuntu Server 14.04, but I’m sure it could be tweaked to work on RHEL or CentOS as well. There’s no real secret sauce to the install but there are several “gotcha’s” that most people

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