- Activate the Retouch tool by clicking it or by pressing the R key on your keyboard. When you do, your cursor turns into a black circular outline rimmed with white, so you can always see the circle.
- In addition to that, multiple extra tools like Duplicate File Finder, Disk Health Monitor, Mac Cleaner, Emergency Recovery Boot Drive, are available for free. Verdict: Disk Drill successfully manages the balance of essential and advanced features for the casual, professional, and enterprise users alike, which makes it worth the money spent on.
6 user-friendly accounting software options for Mac. Rather than giving you a generic list of accounting software that works on Macs (which would basically just be our accounting software directory), I decided to determine which top factors users have for choosing Mac over PC and then find accounting software that best suits those users.
The aim of devtools
is to make your life as a package developer easier by providing R functions that simplify many common tasks. R packages are actually really simple, and with the right tools it should be easier to use the package structure than not. Package development in R can feel intimidating, but devtools does every thing it can to make it as welcoming as possible. devtools
comes with a small guarantee: if because of a bug in devtools a member of R-core gets angry with you, I will send you a handwritten apology note. Just forward me the email and your address, and I'll get a card in the mail.
devtools
is opinionated about how to do package development, and requires that you use roxygen2
for documentation and testthat
for testing. Not everyone agrees with these opinions, and they are by no means perfect, but they have evolved during the process of writing over 30 R packages. I'm always happy to hear about what doesn't work for you, and any places where devtools gets in your way. Either send an email to the rdevtools mailing list or file an issue.
Tool Option In R For Macs
Updating to the latest version of devtools
You can track (and contribute to) development of devtools
at https://github.com/hadley/devtools. To install it:
Install the release version of
devtools
from CRAN withinstall.packages('devtools')
.- Make sure you have a working development environment.
- Windows: Install Rtools.
- Mac: Install Xcode from the Mac App Store.
- Linux: Install a compiler and various development libraries (details vary across differnet flavors of Linux).
Follow the instructions below depending on platform.
Mac and Linux:
Windows:
Package development tools
All devtools
functions accept a path as an argument, e.g. load_all('path/to/path/mypkg')
. If you don't specify a path, devtools
will look in the current working directory - this is recommend practice.
Frequent development tasks:
load_all()
simulates installing and reloading your package, loading R code inR/
, compiled shared objects insrc/
and data files indata/
. During development you usually want to access all functions soload_all()
ignores the packageNAMESPACE
.load_all()
will automatically create aDESCRIPTION
if needed.document()
updates documentation, file collation andNAMESPACE
.test()
reloads your code, then runs alltestthat
tests.
Building and installing:
install()
reinstalls the package, detaches the currently loaded version then reloads the new version withlibrary()
. Reloading a package is not guaranteed to work: see the documentation tounload()
for caveats.build()
builds a package file from package sources. You can can use it to build a binary version of your package.install_github()
installs an R package from github,install_gitorious()
from gitorious,install_bitbucket()
from bitbucket,install_url()
from an arbitrary url andinstall_file()
from a local file on disk.install_version()
installs a specified version from cran.
Check and release:
check()
updates the documentation, then builds and checks the package.build_win()
builds a package using win-builder, allowing you to easily check your package on windows.run_examples()
will run all examples to make sure they work. This is useful because example checking is the last step ofR CMD check
.check_doc()
runs most of the documentation checking components ofR CMD check
release()
makes sure everything is ok with your package (including asking you a number of questions), then builds and uploads to CRAN. It also drafts an email to let the CRAN maintainers know that you've uploaded a new package.
Other commands:
bash()
opens a bash shell in your package directory so you can use git or other command line tools.wd()
changes the working directory to a path relative to the package root.
Development mode
Calling dev_mode()
will switch your version of R into 'development mode'. In this mode, R will install packages to ~/R-dev
. This is useful to avoid clobbering the existing versions of CRAN packages that you need for other tasks. Calling dev_mode()
again will turn development mode off, and return you to your default library setup.
Other tips
I recommend adding the following code to your .Rprofile
:
See the complete list in ?devtools
This will set up R to:
- always install packages from the RStudio CRAN mirror
- ignore newlines when
browse()
ing - give minimal output from
traceback()
- automatically load
devtools
in interactive sessions
There are also a number of options you might want to set (in .Rprofile
) to customise the default behaviour when creating packages and drafting emails:
devtools.name
: your name, used to sign emailsdevtools.desc.author
: your R author string, in the form of'Hadley Wickham <h.wickham@gmail.com> [aut, cre]'
. Used when creating defaultDESCRIPTION
files.devtools.desc.license
: a default license used when creating new packages
Alt key on Mac is indeed exist. And it’s called Option key.
Tool Option In R For Machine Learning
Windows vs Mac—there are so many differences. A lot of our customers have used a PC before and then decide they want to switch to Mac for better performance, nicer design, or for better security. However, they were afraid they would have a hard time getting used to the macOS keyboard. We hear questions like, “How can I close a Window? The Mac keyboard doesn’t have the Alt + F4 shortcut.” We always give them two answers:
1. With Parallels Desktop for Mac you have the choice to use the same keyboard shortcuts you had on your PC.
Tool Option In R For Macbook Pro
2. If you want to use the Mac keyboard you will experience that the alt key is very different, as we explain in this blog post.
Where is the Alt key on a Mac keyboard?
The PC-keyboard equivalent of Alt on a Mac is called the Option key, and you’ll find the Option Key on your Mac if you go two keys to the left of the spacebar. However, the option key on a Mac keyboard is used in a different way than the alt key on a Windows PC. In terms of functionality, the alt key in Windows is often more comparable with the Command key than with the Option key on a Mac. You might be also familiar with the Ctrl and Alt keys from your PC. On your Mac keyboard, you have Command (⌘ cmd), Control (ctrl), and Option (⌥ alt) keys.
How do Windows shortcuts change on a Mac?
Check out some equivalents of popular Windows alt shortcuts on a Mac, which might be especially helpful for those users who are new to Mac:
Tool Option In R For Mac Os
Windows | Mac | |
Closing a window | Alt-F4 | Command-W |
Restarting | Control-Alt-Delete | Control-Command-Eject |
Shutting down | Control-Alt-Delete | Control-Option-Command-Eject |
Logging out | Control-Alt-Delete | Shift-Command-Q |
Switch between open apps | Alt + Tab | Command-tab |
Go back | Alt + Left arrow | Command + Left arrow |
Go forward | Alt + Right arrow | Command + Right arrow |
Move up one screen | Alt + Page Up | Command + Page Up |
Move down one screen | Alt + Page Down | Command + Page Down |
When running Windows on a Mac with Parallels Desktop, is it possible to use Windows shortcuts on a Mac?
If you run Windows on your Mac with Parallels Desktop for Mac, you can configure your keyboard shortcuts the way you want to work, with either macOS or Windows shortcuts. Click here for more information on how to set the different shortcuts.
You can find even more useful Mac shortcuts in the infographic here.
Missing your Start Menu and familiar Windows look and feel? You can use Parallels Desktop and have Windows 10 along with your favorite Windows apps on your new Mac.