Statistics with R, and open source stuff (software, data, community)
Continue reading “How to install R 3.6.3 (NOT 4+) on Linux MINT 19.x (19.1, 19.2, 19.3)”
I’m excited to announce that heatmaply version 1.0.0 has been published to CRAN! (getting started vignette is available here)
Continue reading “heatmaply 1.0.0 – beautiful interactive cluster heatmaps in R”
This post on the heatmaply package is based on my recent paper from the journal bioinformatics (a link to a stable DOI). The paper was published just last week, and since it is released as CC-BY, I am permitted (and delighted) to republish it here in full. My co-authors for this paper are Jonathan Sidi, Alan O’Callaghan, and Carson Sievert.
Summary: heatmaply is an R package for easily creating interactive cluster heatmaps that can be shared online as a stand-alone HTML file. Interactivity includes a tooltip display of values when hovering over cells, as well as the ability to zoom in to specific sections of the figure from the data matrix, the side dendrograms, or annotated labels. Thanks to the synergistic relationship between heatmaply and other R packages, the user is empowered by a refined control over the statistical and visual aspects of the heatmap layout.
Availability: The heatmaply package is available under the GPL-2 Open Source license. It comes with a detailed vignette, and is freely available from: http://cran.r-project.org/package=heatmaply
My friend Jonathan Sidi and I (Tal Galili) are pleased to announce the release of shinyHeatmaply (0.1.0): a new Shiny application (and Shiny gadget) for creating interactive cluster heatmaps. shinyHeatmaply is based on the heatmaply R package which strives to make it easy as possible to create interactive cluster heatmaps.
The app introduces a functionality that saves to disk a self contained copy of the htmlwidget as an html file with your data and specifications you set from the UI, so it can be embedded in webpages, blogposts and online web appendices for academic publications.
You can see some of shinyHeatmaply‘s capabilities in the following 40 seconds video:
From CRAN:
install.packages('shinyHeatmaply')
From github:
devtools::install_github('yonicd/shinyHeatmaply')
The application has an import interface as part of the application which currently supports csv, txt, tab, xls, xlsx, rd, rda. You can start the app using:
library(shiny)
library(heatmaply)
# If you didn't get shinyHeatmaply yet, you can run it through github:
# runGitHub("yonicd/shinyHeatmaply",subdir = 'inst/shinyapp')
# or just use your locally installed package:
library(shinyHeatmaply)
runApp(system.file("shinyapp", package = "shinyHeatmaply"))
The gadget is called from the R console and accepts input arguments. The object defined as the input to the shinyHeatmaply gadget is a data.frame or a list of data.frames. You can start it using the following code:
library(shinyHeatmaply)
#single data.frame
data(mtcars)
launch_heatmaply(mtcars)
#list
data(iris)
launch_heatmaply(list('Example1'=mtcars,'Example2'=iris))
You can see an example of a saved shinyHeatmaply output here. Or view the following iframe:
Continue reading “shinyHeatmaply – a shiny app for creating interactive cluster heatmaps”
Last week the updated version of ggedit was presented in RStudio::conf2017. First, a BIG thank you to the whole RStudio team for a great conference and being so awesome to answer the insane amount of questions I had (sorry!). For a quick intro to the package see the previous post.
To install the package:
devtools::install_github("metrumresearchgroup/ggedit",subdir="ggedit")
ggplot(data=iris,aes(x=Sepal.Width,y=Sepal.Length,colour=Species))+geom_point()ggplot(data=iris,aes(x=Sepal.Width,y=Sepal.Length))+geom_point(aes(colour=Species))ggplot()+geom_point(data=iris,aes(x=Sepal.Width,y=Sepal.Length,colour=Species))Continue reading “ggedit 0.0.2: a GUI for advanced editing of ggplot2 objects”
Guest post by Jonathan Sidi, Metrum Research Group
ggplot2 has become the standard of plotting in R for many users. New users, however, may find the learning curve steep at first, and more experienced users may find it challenging to keep track of all the options (especially in the theme!).
ggedit is a package that helps users bridge the gap between making a plot and getting all of those pesky plot aesthetics just right, all while keeping everything portable for further research and collaboration.
ggedit is powered by a Shiny gadget where the user inputs a ggplot plot object or a list of ggplot objects. You can run ggedit directly from the console from the Addin menu within RStudio.
Continue reading “ggedit – interactive ggplot aesthetic and theme editor”
R 3.3.2 (codename “Sincere Pumpkin Patch”) was released yesterday You can get the latest binaries version from here. (or the .tar.gz source code from here). The full list of bug fixes and new features is provided below.
If you are using Windows you can easily upgrade to the latest version of R using the installr package. Simply run the following code in Rgui:
install.packages("installr") # install
setInternet2(TRUE) # only for R versions older than 3.3.0
installr::updateR() # updating R.
Running “updateR()” will detect if there is a new R version available, and if so it will download+install it (etc.). There is also a step by step tutorial (with screenshots) on how to upgrade R on Windows, using the installr package. If you only see the option to upgrade to an older version of R, then change your mirror or try again in a few hours (it usually take around 24 hours for all CRAN mirrors to get the latest version of R).
I try to keep the installr package updated and useful, so if you have any suggestions or remarks on the package – you are invited to open an issue in the github page.
Guest post by AVNER KANTOR
I used the wonderful tutorial of Dean Attall to set my machine in Google cloud. After I finished to configure it successfully I wanted to redirect my domain to the Shiny application URL. This is a short description how you can do it.
Continue reading “Set Application Domain Name with Shiny Server”
Guest post by Jo Hardin, professor of mathematics, Pomona College.
In this election year, the American Statistical Association (ASA) has put together a competition for students to predict the exact percentages for the winner of the 2016 presidential election. They are offering cash prizes for the entry that gets closest to the national vote percentage and that best predicts the winners for each state and the District of Columbia. For more details see:
http://thisisstatistics.org/electionprediction2016/
To get you started, I’ve written an analysis of data scraped from fivethirtyeight.com. The analysis uses weighted means and a formula for the standard error (SE) of a weighted mean. For your analysis, you might consider a similar analysis on the state data (what assumptions would you make for a new weight function?). Or you might try some kind of model – either a generalized linear model or a Bayesian analysis with an informed prior. The world is your oyster!
Continue reading “Presidential Election Predictions 2016 (an ASA competition)”
Guest post by John Bellettiere, Vincent Berardi, Santiago Estrada
To visually explore relations between two related variables and an outcome using contour plots. We use the contour function in Base R to produce contour plots that are well-suited for initial investigations into three dimensional data. We then develop visualizations using ggplot2 to gain more control over the graphical output. We also describe several data transformations needed to accomplish this visual exploration.