RStudio v0.97 — Release Notes

v0.97.551 — May 11th, 2013

Package Development

This release includes a variety of tools to support R package development, including:

A new Build tab with various package development commands and a view of build output and errors
Build and Reload command that rebuilds the package and reloads it in a fresh R session
Incremental reload is very fast and preserves the state of the previous R session, providing quick turnarounds and much more interactive workflow for package development
Additional commands for checking packages and building source and binary packages
Ability to create a new package based on existing R source files

There are also a number of features aimed at making it easier to write R documentation:

Preview and optional automatic preview on save for Rd files
Spell-checking for Rd files
Syntax highlighting, code-completion, and re-flowing for Roxygen comments
Ability to automatically invoke Roxygen prior to package builds

There is also integration with the devtools package, including:

Load All command and keyboard shortcut (Ctrl+Shift+L) that calls devtools::load_all
All package installations respect the development library established by devtools::dev_mode
Automatic restoration of devtools::dev_mode when reloading and restarting R sessions

Rcpp

This release includes many new features to support seamless R and C++ integration using Rcpp, including:

Syntax highlighting for C/C++
Quick navigation to gcc errors and warnings
Support for Rcpp Attributes:

Command w/ keyboard shortcut for Rcpp::sourceCpp
Editor support for embedded R code chunks in C++ source files
Automatic calls to Rcpp::compileAttributes for package builds

New project option to create "Package w/Rcpp"
Automatic unloading of Windows dynamic libraries before package builds
Editor support for Rcpp code chunks in R Markdown

Source Editor

Find and Replace improvements:

Incremental search
Find/Replace in selection
Backwards find
Options for whole word and wrap

Automatic indentation improvements:

Full support for auto-indent in Sweave/knitr code chunks
More intelligent handling of closing braces
Recognize operators (e.g. '+' for ggplot) as expression continuations
Option to control whether function arguments are vertically aligned
Option to disable auto-indent after pasting code into editor

Vim editing mode
Tomorrow suite of editor themes
Surround selected text with quote/brace/paren/etc. on key input
Jump to matching brace/param (Ctrl+P)
New options: show whitespace, show indent guides, non-blinking cursor
Advance to next line after executing a selection from the editor
Significantly improved file-type detection (automatically open all files detected as text)

Console

More intelligent history navigation with up/down arrow keys
Confirm if attempting to quit while R console is busy
Improved auto-scroll behavior in the console
Option to focus console after executing code from editor
Send interrupt for ESC key even if server doesn't appear to be busy
Display error output in distinct color for TextMate theme (and some others)

Plots

Plot zoom window improvements:

Automatically refreshes with plots pane
Remembers and restores it's size (within each session)

Use bg=transparent option for plots to RStudio device
Always use native R png device with cairo bitmapType on Linux
Default plot export dialogs to current size of plots pane
Option to use cairo_pdf for PDF plot export on platforms where it is available
Set useDingbats = FALSE for PDF plot export (for compatibility with broader set of PDF viewers)
Compatibility with R Graphics Engine version 10 (R-devel)

Packages

Install Packages dialog can now install both source and binary packages
Warn and offer optional restart when updating packages that are currently loaded
Display package version and tooltip indicating which library they are installed in
Option to use RStudio CRAN mirror (Amazon S3/CloudFront)
Install rstudio and manipulate packages in default user library (R 3.0)

Workspace

New option to control whether hidden objects are removed in Clear All
Confirm prior to editing large (length >= 100) workspace objects
Call read.csv directly when possible in import dataset (compatibility with spreadsheets exported as CSV from LibreOffice)
Custom workspace display for ore.frame objects
Treat objects of type data.table and cast_df as data

Sweave/knitr

Added a Log button to the HTML preview window for reviewing the compilation log
Changed insert chunk keyboard shortcut to Cmd+Alt+I
Enable syntax highlighting inside of Markdown lists
Add docs on inline R code to markdown quick reference
Markdown rendering no longer performs a hard wrap for newlines
Ignore Pandoc title blocks and YAML front-matter when rendering markdown
Don't use new window to open links from Markdown generated HTML documents
Parse new knitr error message format for enhanced R error diagnostics
Removed stitch notebook option
Append rather than prepend /opt/local/bin to path (prefer MacTeX over MacPorts Tex)
Explicitly pass file encoding to Sweave and knitr

Miscellaneous

Compatibility with R 3.0
Ability to specify a global UI zoom-level
Improved keyboard navigation for the Help pane (Ctrl+F, incremental search)
Show directory disambiguater when multiple projects in the MRU share the same name
Support for OS X Lion full screen mode
Add Ctrl+Q shortcut for quit on Windows on Linux
Change replace and find keyboard shortcut to Cmd+Shift+J
Change Chrome close window shortcut to Cmd+Shift+Z
Preface Alt keyboard shortcuts on the Mac with Cmd (international keyboard compatibility)
Preference to control whether --internet2 is enabled on Windows
Find in files search pattern defaults to current selection
Remember find in files search scope (per-project) across sessions
RSTUDIO environment variable is set at startup (for detecting RStudio within .Rprofile)
New 'rstudio' package with versionInfo and diagnosticsReport functions
Change Windows stack size to 20MB (was 10MB in v0.96)
Sign Windows installer using Authenticode
Use DYLD_FALLBACK_LIBRARY_PATH rather than DYLD_LIBRARY_PATH to bind to libR on OS X
More robust handling of errors that occur during quit
Reduce error option related overhead of calls from C++ to R
Remove legacy 32MB minimum memory limit

Robustness/Diagnostics

New Restart R and Terminate R commands
More graceful recovery if the underlying R session crashes or is unable to start
Diagnostic tools for troubleshooting startup and configuration problems
Prohibit opening binary files in the source editor
Improved detection of invalid or too-large source files at startup
Prevent OS X freeze which occurs when more than one modal dialog shows at startup.
Use Recycle Bin for file deletion on Windows and OS X

RStudio Server

Suspend now saves and restores .libPaths and environment variables
Suspend now correctly handles packages loaded from a custom lib.loc
Option to automatically re-execute .Rprofile on session resume
Automatic installation of dependencies on Debian/Ubuntu using gdebi
Fix execute rule conflict with AppArmor base abstraction
Ability to discover R in non-standard filesystem locations

Bug Fixes

Don't allow console width to be set to an invalid value
Correct default project file name for project directories containing a period
Remove files from MRU list if an error occurs while opening them
Recognize .q and .s files as R source files
Show forward and back buttons for Rmd and Rnw source documents
Enable shell escape option for LaTeX now works correctly on Windows
Fix for execute current/next chunk not working in certain cursor states
Code folding keyboard shortcuts now work for non-top level code blocks
Correctly display next/previous tab shortcuts on Linux
Advance to empty line after executing last line in the document
Yank (Ctrl+U) shortcut now works as intended on all platforms
Prevent selection of user-interface elements (only text can be selected)
Ensure that serialization progress always appears above global toolbar
Restore focus to editor after switching file types
Restore focus to main window after open/save dialogs are dismissed
Ensure that Git/SVN and document preview windows correctly reactivate in Chrome
Use correct SVN directory even when working directory changes
Set locale correctly on OS X (including respecting R.app locale preferences)
Set R_ARCH in multi-arch builds of R for OS X
Print warning when running against MacPorts R that is compiled without aqua/quartz
When scanning for R script don't treat /usr/bin/R as a script if it's actually a directory
Fix OS X crashes that occurred sporadically for some list boxes in the options dialog
Don't prevent application exit when errors occur while reverting source documents
Don't show plot preview if it's larger than available screen space
Prevent simultaneous display of message box and update dialog
Ctrl+W can now closes the plot zoom window
Use correct parameters to ensure a valid EPS file is exported
Show correct number of variables in data viewer
Automatically hide history popup panel when clicking away from it
Correctly handle package status when multiple versions of packages are installed
Update status of packages even when they are hidden by a filter
Don't call packageVersion for compatibility with R 2.11.1
RShowDoc type=html now works correctly on Windows
browseURL can now open HTML documents now prefaced by the file:// protocol
browseURL in desktop mode no longer performs additional URL encoding
Ensure that PDF preview works even when concordance isn't available
Display search results when looking up help term with more than one matching symbol
PDF links now open correctly from the Help pane
Always use bundled gnu grep on windows (rather than other versions of grep that might be in the path)
Eliminate upstart and AppArmor mis-detection on Debian testing
Prevent freeze when loading large line-wrapped source files on Chrome for Linux

RStudio IDE