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version version 11.1
Window name Windows Macintosh Results ctrl-1 cmd-1 Graph ctrl-2 cmd-2 Viewer ctrl-3 cmd-3 Command ctrl-4 cmd-4 Review ctrl-5 cmd-5 Variables ctrl-6 cmd-6
help ttest
help ttest, ttesti dialogs: one-sample two-sample, paired
immediate dialogs: one-sample two-sample
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Title
[R] ttest -- Mean-comparison tests
Syntax
One-sample mean-comparison test
ttest varname == # [if] [in] [, level(#)]
(...)
You can also get general help by typing,
help contents
Top
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Category listings
Basics
language syntax, expressions and functions, ...
Data management
inputting, editing, creating new variables, ...
Statistics
summary statistics, tables, estimation, ...
Graphics
scatterplots, bar charts, ...
Programming and matrices
do-files, ado-files, Mata, matrices
Help file listings
Language syntax
advice on what to type
Manual datasets
download datasets from the Reference manuals
CopyrightsThere is also a help advice option.
help advice
help help_advice
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Description
To obtain help, click
contents for a list of command categories, advice on language syntax, and links to datasets from the reference manuals.
help for help for a Stata command with examples, options list, and syntax guide.
search to search help files by keyword(s) and, optionally, the Internet. Also see Advice on specifying keywords.
hsearch to search text of help files for specific words.
You can also
1. Find and install SJ, STB, and user-written programs from the net
2. Review, manage, and uninstall user-written programs
3. Check for and optionally install official updates
4. View your logs or any file
5. Launch your browser
6. Obtain the latest news from www.stata.com
(...)You can also find out about what changes have been made in the latest update by typing,
help whatsnew
help whatsnew
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Title
Additions to Stata since release 10.0
Description
Update history:
Stata 10.0 base 25jun2007
Stata 10.1 base 11aug2008
updated to 06jan2009
This file records the additions and fixes made to Stata since the release of version 10.0. The end of this file provides links for
earlier additions and fixes.
Updates are available free over the Internet. Click here to obtain the latest update, or see updates for more detailed instructions.
Most recent changes are listed first.
-------- update 06jan2009 ------------------------------------------------------------------------------------------------------------------
Ado-files
1. Online help and the search index have been brought up to date for Stata Journal 8(4).
(...)
General information about Stata can be found by going to Stata's web site.
UCLA Statistical Consulting Group's Stata web pages can be found at:
findit simpower findit sgmediation findit anovaplot
UCLA Researchers are invited to our Statistical Consulting Services
We recommend others to our list of Other Resources for Statistical Computing Help
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