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Re: st: How do I add an asterix to a bar chart to represent significance?
From
Nick Cox <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: How do I add an asterix to a bar chart to represent significance?
Date
Tue, 4 Feb 2014 11:21:25 +0000
Asterix is a cartoon character. See e.g. http://en.wikipedia.org/wiki/Asterix
Asterisks are punctuation marks.
Assuming interest in the latter: you can add "*", "**", etc. as text
to any -twoway graph- by a call to -scatteri- or an -addtext()-
option.See -help twoway scatteri- or -help added text option-. That
is, you just need to say where you want text and what text you want.
Tastes differ, markedly, but I'd recommend giving P-values,
explicitly, if they are of interest and graphical emphasis on showing
differences or effects quantitatively. Reducing test results to binary
reports (significant or not) is not often the most helpful way to
present an analysis, even with some nuance on *, **, ***. Are we
grading movies, hotels or restaurants here?
In particular, the common practice of showing means by bars and not
much else on a graph, which your question seems to imply, is rather
limited in helpfulness. See e.g. this provocative piece
http://biostat.mc.vanderbilt.edu/wiki/Main/DynamitePlots
Nick
[email protected]
On 4 February 2014 11:05, Mollon, Josephine
<[email protected]> wrote:
> I am using Stata 10 and trying to include an asterix representing significance on top of bars. How can I add this to my graph?
> Many thanks,
> Jo
>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/