A Session User Settings

The following table enumerates the settings supported in the user (or system) rstudio-prefs.json file, along with their type, allowable values, and defaults.

Property Description Type Default
always_enable_rnw_concordance Whether to always enable the concordance for RNW files. boolean TRUE
always_save_history Whether to always save the R console history. boolean TRUE
ansi_console_mode How to treat ANSI escape codes in the console. string (off, on, strip) on
aria_application_role Whether to tell screen readers that the entire page is an application. boolean TRUE
auto_append_newline Whether to ensure that source files end with a newline character. boolean FALSE
auto_detect_indentation Whether to automatically detect indentation settings from file contents. boolean TRUE
auto_discover_package_dependencies Whether to automatically discover and offer to install missing R package dependencies. boolean TRUE
auto_expand_error_tracebacks Whether to automatically expand tracebacks when an error occurs. boolean FALSE
auto_run_setup_chunk Whether to automatically run an R Markdown document’s Setup chunk before running other chunks. boolean TRUE
background_diagnostics Whether to run code diagnostics in the background, as you type. boolean TRUE
background_diagnostics_delay_ms The number of milliseconds to delay before running code diagnostics in the background. integer 2000
bioconductor_mirror_name The name of the default Bioconductor mirror. string Seattle (USA)
bioconductor_mirror_url The URL of the default Bioconductor mirror. string http://www.bioconductor.org
blinking_cursor Whether to flash the cursor off and on. boolean TRUE
busy_detection How to detect busy status in the Terminal. string (always, never, whitelist) always
busy_whitelist A whitelist of apps that should not be considered busy in the Terminal. array tmux, screen
check_arguments_to_r_function_calls Whether to check arguments to R function calls. boolean FALSE
check_for_updates Whether to check for new versions of RStudio when RStudio starts. boolean TRUE
check_unexpected_assignment_in_function_call Whether to check for unexpected variable assignments inside R function calls. boolean FALSE
clang_verbose The verbosity level to use with Clang (0 - 2) integer 0
clean_texi2dvi_output Whether to clean output after running Texi2Dvi. boolean TRUE
cleanup_after_r_cmd_check Whether to clean up temporary files after running R CMD CHECK. boolean TRUE
code_completion When to use auto-completion for R code in the RStudio code editor. string (always, never, triggered, manual) always
code_completion_characters The number of characters in a symbol that can be entered before completions are offered. integer 3
code_completion_delay The number of milliseconds to wait before offering code suggestions. integer 250
code_completion_other When to use auto-completion for other languages (such as JavaScript and SQL) in the RStudio code editor. string (always, triggered, manual) always
console_code_completion Whether to always use code completion in the R console. boolean TRUE
console_double_click_select Whether double-clicking should select a word in the Console pane. boolean FALSE
console_line_length_limit The maximum number of characters to display in a single line in the R console. integer 1000
continue_comments_on_newline Whether continue comments (by inserting the comment character) after adding a new line. boolean FALSE
cran_mirror The CRAN mirror to use. object
custom_shell_command The fully qualified path to the custom shell command to use in the Terminal tab. string
custom_shell_options The command-line options to pass to the custom shell command. string
data_viewer_max_columns The maximum number of columns to show at once in the data viewer. integer 50
default_encoding The default character encoding to use when saving files. string
default_latex_program The default program to use when processing LaTeX documents. string pdfLaTeX
default_project_location The directory path under which to place new projects by default. string
default_r_version The R version to use by default. object
default_sweave_engine The default engine to use when processing Sweave documents. string Sweave
diagnostics_in_r_function_calls Whether to run diagnostics in R function calls. boolean TRUE
diagnostics_on_save Whether to check code for problems after saving it. boolean TRUE
doc_outline_show Which objects to show in the document outline pane. string (sections_only, sections_and_chunks, all) sections_only
document_author The default name to use as the document author when creating new documents. string
document_load_lint_delay The number of milliseconds to wait before linting a document after it is loaded. integer 5000
editor_keybindings The keybindings to use in the RStudio code editor. string (default, vim, emacs, sublime) default
editor_theme The name of the color theme to apply to the text editor in RStudio. string Textmate (default)
enable_screen_reader Support accessibility aids such as screen readers (RStudio Server). boolean FALSE
enable_snippets Whether to enable code snippets in the RStudio code editor. boolean TRUE
enable_text_drag Whether to enable moving text on the editing surface by clicking and dragging it. boolean TRUE
execution_behavior The unit of R code to execute when the Execute command is invoked. string (line, statement, paragraph) statement
focus_console_after_exec Whether to focus the R console after executing an R command from a script. boolean FALSE
fold_style The style of folding to use. string (begin-only, begin-and-end) begin-and-end
font_size_points The default editor font size, in points. number 10
git_diff_ignore_whitespace Whether to ignore whitespace when generating diffs of version controlled files. boolean FALSE
git_exe_path The path to the Git executable to use. string
global_theme The theme to use for the main RStudio user interface. string (classic, default, alternate) default
handle_errors_in_user_code_only Whether to handle errors only when user code is on the stack. boolean TRUE
help_font_size_points The help panel font size, in points. number 10
hide_console_on_chunk_execute Whether to hide the R console when executing inline R Markdown chunks. boolean TRUE
hide_object_files Whether to hide object files in the Files pane. boolean TRUE
highlight_code_chunks Whether to highlight code chunks in R Markdown documents with a different background color. boolean TRUE
highlight_r_function_calls Whether to highlight R function calls in the code editor. boolean FALSE
highlight_selected_line Highlight the selected line in RStudio’s code editor. boolean FALSE
highlight_selected_word Highlight the selected word in RStudio’s code editor. boolean TRUE
ignore_uppercase_words Whether to ignore words in uppercase when spell checking. boolean TRUE
ignore_words_with_numbers Whether to ignore words with numbers in them when spell checking. boolean TRUE
initial_working_directory The initial working directory for new R sessions. string
insert_matching Whether to insert matching pairs, such as () and [], when the first is typed. boolean TRUE
insert_numbered_latex_sections Whether to insert numbered sections in LaTeX. boolean FALSE
insert_parens_after_function_completion Whether to insert parentheses after function completions. boolean TRUE
insert_spaces_around_equals Whether to insert spaces around the equals sign in R code. boolean TRUE
jobs_tab_visibility The visibility of the Jobs tab. string (closed, shown, default) default
knit_working_dir The working directory to use when knitting R Markdown documents. string (default, current, project) default
latex_preview_on_cursor_idle When to preview LaTeX mathematical equations when cursor has not moved recently. string (never, inline_only, always) always
latex_shell_escape Whether to enable shell escaping with LaTeX documents. boolean FALSE
launcher_jobs_sort How to sort jobs in the Launcher tab in RStudio Pro. string (recorded, state) recorded
line_ending_conversion The line ending format to use when saving files. string (default, windows, posix, native, passthrough) native
load_workspace Whether to load the workspace when the R session begins. boolean TRUE
margin_column The number of columns of text after which the margin is shown. integer 80
max_spellcheck_prefetch The maximum number of spelling correction suggestions to prefetch. integer 20
max_spellcheck_words The maximum number of spelling words to check at once. integer 500
navigate_to_build_error Whether to navigate to build errors. boolean TRUE
new_project_git_init Whether to initialize new projects with a Git repo by default. boolean FALSE
new_proj_git_init Whether a git repo should be initialized inside new projects by default. boolean FALSE
num_spaces_for_tab The number of spaces to insert when pressing the Tab key. integer 2
packages_pane_enabled Whether to enable RStudio’s Packages pane. boolean TRUE
panes Layout of panes in the RStudio workbench. object
pdf_previewer The program to use to preview PDF files after generation. string (none, default, rstudio, desktop-synctex, system) default
plumber_viewer_type Where to display Shiny applications when they are run. string (user, none, pane, window, browser) window
posix_terminal_shell The terminal shell to use on POSIX operating systems (MacOS and Linux). string (default, bash, custom, none) default
publish_ca_bundle The path to the custom certificate authority (CA) bundle to use when publishing content. string
publish_check_certificates Whether to check remote server SSL certificates when publishing content. boolean TRUE
real_time_spellchecking Whether to enable real-time spellchecking by default. boolean TRUE
reduced_motion Reduce use of animations in the user interface. boolean FALSE
reindent_on_paste Whether to automatically re-indent code when it’s pasted into RStudio. boolean TRUE
remove_history_duplicates Whether to remove duplicate entries from the R console history. boolean FALSE
restore_last_project Whether to restore the last project when starting RStudio. boolean TRUE
restore_project_r_version Whether to restore the last version of R used by the project in RStudio Pro. boolean TRUE
restore_source_document_cursor_position Whether to save the position of the cursor when a fille is closed, restore it when the file is opened. boolean TRUE
restore_source_documents Whether to restore the last opened source documents when RStudio starts up. boolean TRUE
reuse_sessions_for_project_links Whether to reuse sessions when opening projects in RStudio Server Pro. boolean FALSE
rmd_chunk_output_inline Whether to show chunk output inline for ordinary R Markdown documents. boolean TRUE
rmd_preferred_template_path The path to the preferred R Markdown template. string
rmd_viewer_type Where to display R Markdown documents when they have completed rendering. string (window, pane, none) window
root_document The root document to use when compiling PDF documents. string
rsa_key_path The path to the RSA key file to use. string
run_rprofile_on_resume Whether to run .Rprofile again after resuming a suspended R session. boolean FALSE
save_before_sourcing Whether to automatically save scripts before executing them. boolean TRUE
save_files_before_build Whether to save all open, unsaved files before building the project. boolean FALSE
save_workspace Whether to save the workspace after the R session ends. string (always, never, ask) ask
scroll_past_end_of_document Whether to allow scrolling past the end of a file. boolean FALSE
shiny_viewer_type Where to display Shiny applications when they are run. string (user, none, pane, window, browser) window
show_diagnostics_cpp Whether to show diagnostic messages for C++ code as you type. boolean TRUE
show_diagnostics_other Whether to show diagnostic messages for other types of code (not R or C++). boolean TRUE
show_diagnostics_r Whether to show diagnostic messages (such as syntax and usage errors) for R code as you type. boolean TRUE
show_doc_outline_rmd Whether to show the document outline by default when opening R Markdown documents. boolean FALSE
show_function_signature_tooltips Whether to show function signature tooltips during autocompletion. boolean TRUE
show_help_tooltip_on_idle Whether to show help tooltips for functions when the cursor has not been recently moved. boolean FALSE
show_hidden_files Whether to show hidden files in the Files pane. boolean FALSE
show_indent_guides Whether to show indentation guides in the RStudio code editor. boolean FALSE
show_inline_toolbar_for_r_code_chunks Whether to show a toolbar on code chunks in R Markdown documents. boolean TRUE
show_internal_functions Whether to show functions without source references in the Traceback pane while debugging. boolean FALSE
show_invisibles Whether to show invisible characters, such as spaces and tabs, in the RStudio code editor. boolean FALSE
show_last_dot_value Show the result of the last expression (.Last.value) in the Environment pane. boolean FALSE
show_launcher_jobs_tab Whether to show the Launcher jobs tab in RStudio Pro. boolean TRUE
show_line_numbers Show line numbers in RStudio’s code editor. boolean TRUE
show_margin Whether to show the margin guide in the RStudio code editor. boolean TRUE
show_publish_diagnostics Whether to show verbose diagnostic information when publishing content. boolean FALSE
show_rmd_render_command Whether to print the render command use to knit R Markdown documents in the R Markdown tab. boolean FALSE
show_terminal_tab Whether to show the Terminal tab. boolean TRUE
show_user_home_page When to show the server home page in RStudio Server Pro. string (always, never, sessions) sessions
soft_wrap_r_files Whether to soft-wrap R source files, wrapping the text for display without inserting newline characters. boolean FALSE
source_with_echo Whether to echo R code when sourcing it. boolean FALSE
spelling_custom_dictionaries The list of custom dictionaries to use when spell checking. array Empty
spelling_dictionary_language The language of the spelling dictionary to use for spell checking. string en_US
strip_trailing_whitespace Whether to strip trailing whitespace from each line when saving. boolean FALSE
style_diagnostics Whether to show style diagnostics (suggestions for improving R code style) boolean FALSE
submit_crash_reports Whether to automatically submit crash reports to RStudio. boolean TRUE
surround_selection Which kinds of delimiters can be used to surround the current selection. string (never, quotes, quotes_and_brackets) quotes_and_brackets
svn_exe_path The path to the Subversion executable to use. string
syntax_color_console Whether to use syntax highlighting in the R console. boolean FALSE
tab_completion Whether to attempt completion of statements when pressing Tab. boolean TRUE
tab_multiline_completion Whether to attempt completion of multiple-line statements when pressing Tab. boolean FALSE
terminal_auto_close Whether to automatically close the Terminal tab. boolean TRUE
terminal_bell_style Terminal bell style string (none, sound) sound
terminal_local_echo Whether to use local echo in the Terminal. boolean TRUE
terminal_path The path to the terminal executable to use. string
terminal_renderer Terminal rendering engine: canvas is faster, dom may be needed for some browsers or graphics cards string (canvas, dom) canvas
terminal_track_environment Whether to track and save changes to system environment variables in the Terminal. boolean TRUE
terminal_websockets Whether to use websockets to communicate with the shell in the Terminal tab. boolean TRUE
toolbar_visible Whether to show the toolbar at the top of the RStudio workbench. boolean TRUE
typing_status_delay_ms Number of milliseconds to wait after last keystroke before updating live region. integer 2000
use_dataimport Whether to use RStudio’s data import feature. boolean TRUE
use_devtools Whether to use the devtools R package. boolean TRUE
use_internet2 Whether to use Internet2 for networking on R for Windows. boolean TRUE
use_newlines_in_makefiles Whether to use newlines when saving Makefiles. boolean TRUE
use_publish_ca_bundle Whether to use a custom certificate authority (CA) bundle when publishing content. boolean FALSE
use_rcpp_template Whether to use RCPP templates. boolean TRUE
use_roxygen Whether to use Roxygen for documentation. boolean FALSE
use_secure_download Whether to use secure downloads when fetching R packages. boolean TRUE
use_spaces_for_tab Whether to insert spaces when pressing the Tab key. boolean TRUE
vcs_enabled Whether to enable RStudio’s version control system interface. boolean TRUE
vertically_align_arguments_indent Whether to vertically align arguments to R function calls during automatic indentation. boolean TRUE
view_dir_after_r_cmd_check Whether to view the directory after running R CMD CHECK. boolean FALSE
warn_if_no_such_variable_in_scope Whether to generate a warning if a variable is used without being defined in the current scope. boolean FALSE
warn_variable_defined_but_not_used Whether to generate a warning if a variable is defined without being used in the current scope boolean FALSE
windows_terminal_shell The terminal shell to use on Windows. string (default, win-git-bash, win-wsl-bash, win-cmd, win-ps, ps-core, custom, none) default
wrap_tab_navigation Whether to wrap around when going to the previous or next editor tab. boolean FALSE