Rstudio: Difference between revisions

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* Ctrl + up/down arrow keys (Linux)
* Ctrl + up/down arrow keys (Linux)


== Fix code spacing ==
== Fix code spacing, reindent lines ==
CMD + Shift + a.
CMD + i
 
It seems to work in a simple case but be careful with the change.


== History panel ==
== History panel ==

Revision as of 15:10, 19 April 2019

Different tastes

Server

Cloud

https://rstudio.cloud/. You can sign up using gmail or github account.

Desktop

Build from source See https://github.com/rstudio/rstudio/blob/master/INSTALL for installation instruction.

To build Rstudio from source in Ubuntu:

  • Install R.
  • Install Qt 4.
  • Download a release version tarball of source code. Do not grab from github master branch. Sometimes the preview version works but the release version cannot be compiled. For example, the release version 0.98.507 would give a build error from /opt/QRstudio-QtSDK/Desktop/4.8.0/gcc/include/QtCore/gstring.h, but the preview version 0.98.836 (May 11th, 2014) works fine.
  • Make sure git is installed/available.
  • Install dependencies (note that installing boost will take a few minutes. Make sure there are 2GB memory or will get a memory related error when running make install)
cd rstudio-rstudio-dbf531d  # the number at the end depending on the source
cd dependencies/linux
./install-dependencies-debian
  • Create build directory
mkdir build
cd build
  • Configure by running cmake
cmake .. -DRSTUDIO_TARGET=Desktop -DCMAKE_BUILD_TYPE=Release

If something is wrong related to boost library, go back to step 1. Then type (installing boost library takes a while) 

cd dependencies/linux 
run ./install-boost

And for some reason, when I try to run cmake (OS is 32-bit LXLE running on VM), I get the following error 

CMake Error at /usr/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:108 (message):
  Could NOT find Qt4 (missing: QT_QTWEBKIT_INCLUDE_DIR QT_QTWEBKIT_LIBRARY
  QT_QTDBUS_INCLUDE DIR QT_QTDBUS_LIBRARY) (found suitable version "4.8.6", minimum required
  is "4.8.0")
  • Build and Install
sudo make install

For RStudio Desktop on Linux, make install automatically creates an entry in the Applications -> Programming menu for RStudio. The rstudio can be launched by /usr/local/lib/rstudio/bin/rstudio.

Preferences

RStudio Theme

Background color (v1.1.383, see an animation on this post)

There are 3 choices of RStudio theme:

  • Classic + selected Editor theme: Code and Console/Terminal are dark, Environment/history/connections and Files/Plots/Packages/Help/Viewer are white (good when doing finding)
  • Modern: 4 panels are all dark
  • Sky: 4 panels are all dark

One good-looking option is also change the layout like this one. So source code take half and console and plot each takes a quarter of the screen.

Toolbar

View -> Hide Toolbar

Change repository

R mirrors

  • chooseCRANmirror(): this actually changes the CRAN mirror. It is done mainly interactively.
  • Non-interactive method. 
    local({
  r <- getOption("repos")
  r["CRAN"] <- "https://mirror.las.iastate.edu/CRAN"
  options(repos = r)
})
  • setRepositories(ind=1:2) (both non-interactive or interactive): this allows to install packages from Bioconductor. After the change, we can use RStudio or the command install.packages() to install R package from Bioconductor. See setRepositories documentation.
1: + CRAN
2: + BioC software
3:   BioC annotation
4:   BioC experiment
5:   CRAN (extras)
6:   Omegahat
7:   R-Forge
8:   rforge.net

In my case, stringr package source code in cloud.r-project.org (default in RStudio or 0-Cloud from chooseCRANmirror()) is 1 week old. That version of source code is now archived and the URL shown from the output of install.packages() cannot be found. When I switch to USA-IA mirror, it has the latest version.

Use options("repos") to see its effect. 

options("repos")
$`repos`
                                        CRAN                                     BioCsoft 
       "https://mirror.las.iastate.edu/CRAN" "https://bioconductor.org/packages/3.7/bioc"

Change R version

https://support.rstudio.com/hc/en-us/articles/200486138-Changing-R-versions-for-RStudio-desktop

On Linux, the default R can be found by which R in the command line. If you want to override which version of R is used then you can set the RSTUDIO_WHICH_R environment variable to the R executable that you want to run against. For example: 

export RSTUDIO_WHICH_R=/opt/R/3.5.0/bin/R

Not that in order for RStudio to see this environment variable when launched from the Ubuntu desktop Applications menu (as opposed to from a terminal) it must be defined in the ~/.profile file.

Multiple versions of R

If multiple versions of R was detected, Rstudio can not be launched successfully. A java-like clock will be spinning without a stop. The trick is to click Ctrl key and click the Rstudio at the same time. After done that, it will show up a selection of R to choose from.

RStudio.jpg

Get help on firefox/chrome browser

(The help panel is kind of small)

No, it can't. But alternatively, if we click "Show in a new window" icon, it will bring the help on an independent window. 

> getOption("browser")
function (url) 
{
    .Call("rs_browseURL", url)
}
<environment: 0x1121bda60>

Tips

R Studio Shortcuts and Tips

Pop out the source pane to have its own window

Drag the tab outside the RStudio window to where you want your new code window to appear, or Click the "Show in new window" button on the editor toolbar (it's next to forward/back)

However, it seems we cannot move the popped out pane back to RStudio. If we just want to maximize one pane, we can use the keyboard shortcut "Ctrl+Shift+1" (source pane) or "Ctrl+Shift+2" (console pane); see Zoom in one pane.

Column selection

Click Alt.

Menu -> Code

  • For R code files *.R, it has "Insert Section" (a recommended way to insert a new section)
  • For R markdown files *.Rmd, it has "Insert Chunk" (just a short cut)

Restart R

Three ways

  • Session -> Restart R
  • .rs.restart()
  • command/ctrl + shift + F10

Note Restarting R in RStudio won't delete/clear workspace/objects but it unloads R packages.

We can use Session -> Clear Workspace or the command rm(list=ls()) to delete all objects.

Snippet

  • https://support.rstudio.com/hc/en-us/articles/204463668-Code-Snippets?mobile_site=true
  • If you type 'ts' into the console, it should pop up a list. However, the default completion delay is 3 characters, meaning it will not work unless your completion delay is set to 2 characters which you can change in your global options (Code > Completion). This works on R console or an R/Rmd file.
    • If you don't want to change your default delay you can just type ts and hit tab.

Install on Crouton

Test on my Asus (intel CPU) Chromebox/Crouton with Ubuntu 14.04. 

(trusty)brb@localhost:~$ sudo dpkg -i '/tmp/mozilla_brb0/rstudio-1.0.44-amd64.deb' 
Selecting previously unselected package rstudio.
(Reading database ... 133157 files and directories currently installed.)
Preparing to unpack .../rstudio-1.0.44-amd64.deb ...
Unpacking rstudio (1.0.44) ...
dpkg: dependency problems prevent configuration of rstudio:
 rstudio depends on libjpeg62; however:
  Package libjpeg62 is not installed.

dpkg: error processing package rstudio (--install):
 dependency problems - leaving unconfigured
Processing triggers for shared-mime-info (1.2-0ubuntu3) ...
Processing triggers for hicolor-icon-theme (0.13-1) ...
Processing triggers for gnome-menus (3.10.1-0ubuntu2) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu1) ...
Processing triggers for bamfdaemon (0.5.1+14.04.20140409-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.54ubuntu1.1) ...
Errors were encountered while processing:
 rstudio

After I run sudo apt-get install libjpeg62, RStudio can be installed successfully.

Switch R version for RStudio desktop

https://support.rstudio.com/hc/en-us/articles/200486138-Changing-R-versions-for-RStudio-desktop

In Linux desktop, we need to run the following (or include the line in ~/.profile file for a permanent solution) before calling 'rstudio' in a terminal. 

export RSTUDIO_WHICH_R=/opt/R/3.5.0/bin/R

Stop a command

  • Use the stop sign
  • Use "Interrupt R" under Session menu.

See Kill a process in R with RStudio

Keyboard shortcut

  • https://support.rstudio.com/hc/en-us/articles/200711853-Keyboard-Shortcuts (Help -> Keyboard Shortcut Quick Reference)
  • Customize the shortcuts.
  • https://www.dropbox.com/s/0moch6xocili6v9/RStudio%20Shortcuts.pdf?dl=0
  • Knit an rmarkdown file
    • Mac: Shift + Cmd + k
    • Linux: Shift + Ctrl + k
  • (Aug 16, 2018) for some reason, run current line (CMD+Enter) will send random lines. It does not help if I assign a different key-bind. Update RStudio does not help either.
    • One way it still works is by selecting line(s) first and hitting the key-bind.
    • Another way is to go to Tools > Global options > Code. Change to Current line from the dropdown list next to CMD + Enter executes. The default is "Multiple-line R statements" which should be better since an R statement can spread several lines. The 3rd option "Multiple consecutive R lines" will send a block of R lines automatically which does not look ideal in most cases.

Move focus to source/console

  • Ctrl + 1: source
  • Ctrl + 2: console

These are the default.

Zoom in/out on one pane/window

  • Ctrl + Shift + 1: source
  • Ctrl + Shift + 2: console
  • Ctrl + Shift + 3: file viewer
  • Ctrl + Shift + 4: environment
  • Ctrl + Shift + 0: show all panes

Show previous/next Plot

By default, they are "Ctrl + Alt + F11" and "Ctrl + Alt + F12". But they have a conflict with other shortcuts in RStudio IDE itself or with the (Linux/Mint) system. In my case, Ctrl+Alt+F11 will escape from Linux Desktop:( Also the Quick Reference shows these bindings had a conflict: Ctrl + Alt + F11 represents Previous Terminal or Previous Plot.

I change the shortcuts to Alt+Left and Alt+Right (directly use keyboard to change it). It works but there is a delay if the plot is more complicated (6 seconds on a 10000 genes heatmap). These new assignment works on Mac and Linux.

Navigate previous commands

  • Cmd + up/down arrow keys (Mac)
  • Ctrl + up/down arrow keys (Linux)

Fix code spacing, reindent lines

CMD + i

History panel

If we want to rerun lines from the history panel, just highlight the lines and then either click the "To Console" button or press the "Enter" key.

See Using Command History from RStudio.

RStudio server

KVM

Multiple Rstudio Server instances using a single R/LaTeX install with KVM

RStudio Server Installation on Ubuntu

https://rviews.rstudio.com/2017/06/21/analytics-administration-for-r/

RStudio Server on Amazon EC2

Rstudio and Github

http://www.datasurg.net/2015/07/13/rstudio-and-github/

Plots window

Project

Running A Data Project In R

https://kkulma.github.io/2018-03-18-Prime-Hints-for-Running-a-data-project-in-R/

  • Use R projects. Always
  • Describe the purpose of your code / project.
  • Load all necessary packages in the beginning of your script & consider calling functions in a package via ::
  • Name your code sections and use them for quick navigation
  • Make your life easier and mark your code when you need to
  • Write your code as if someone was going to use it without communicating with you. From. Day. One
  • Name your files like a Pro: Machine readable, human readable & play well with ordering
    • Put something numeric in your file name first.
    • use the YYYY-MM-DD format for dates
    • regular expression and globbing friendly
    • easy to compute on using delimiters
    • left pad other numbers with zeroes
  • With big, complex data projects use project pipeline
    • load.R
    • clean.R
    • func.R
    • do.R
  • Never save your workspace
  • Before publishing/sharing your code, run it in the fresh workspace

Comment, navigation and code folding

The best practice to include a comment for a block of code is

  • Code > Insert Section (this will create something like # Section One --------------------------------- )
  • At least one number sign (pound sign) before the title PLUS at least 4 of number signs/dash signs/equal signs at the end

Good examples 

#### My section ####

# My section ####

# My section ----

Bad example 1 (this will show 2 lines of (Untitled) in RStudio nagivation) 

################
# Section 1
################

Bad example 2 (this will not show anything in the navigation) 

# Section 2

# Section 2 #

# Section 2 ##

# Section 2 ###

Python

R and Python: How to Integrate the Best of Both into Your Data Science Workflow

Addins

https://support.rstudio.com/hc/en-us/articles/215605467

remedy

facilitate writing in markdown with RStudio

RegExplain

https://github.com/gadenbuie/regexplain

Diagnosis

rstudio --run-diagnostics

Conferences

Retrieved from "https://wiki.taichimd.us/index.php?title=Rstudio&oldid=20071"