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Re: st: * mark indicating between group significans in box plots


From   Lars Folkestad <lfolkestad@health.sdu.dk>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: * mark indicating between group significans in box plots
Date   Thu, 10 Nov 2011 13:49:07 +0100

Thank you that did the 'trick'.
l

Den 10/11/11 13.19 skrev "Nick Cox" <n.j.cox@durham.ac.uk>:

>I don't think anyone would have thought you rude here. Me, possibly....
>
>Here is an oblique answer.
>
>sysuse auto
>graph box turn trunk, text(55 50 "an interesting graph") ysc(r(. 60))
>
>Nick 
>n.j.cox@durham.ac.uk
>
>Lars Folkestad
>
>It seems that some of my text has disappeared here.
>
>Im using a: Wilcoxon signed ranks test - as my data is paired and not
>normally distributed.
>
>I did not mean to be rude.
>
>I respect your decision not to answer, but seeing that this the starring
>is a much used and
>Often asked for by reviewers in my field I hope someone who knows the
>answer to how to star mark
>A boxplot will answer.
>
>Den 10/11/11 12.50 skrev "Nick Cox" <njcoxstata@gmail.com>:
>
>>I will show my hand, as it were.
>>
>>I've often seen people test a difference between means and show a box
>>plot as the graphical equivalent. I'd argue that a plot of means with
>>confidence intervals would be directly related, although even then
>>there are pitfalls.
>>
>>Of  course, that may not be what you are doing. If your test were say
>>a Mann-Whitney-Wilcoxon test, a box plot makes more sense.
>>
>>Even so, a -dotplot- or -stripplot- (SSC) shows much detail than a box
>>plot for two groups. A -qqplot- is even better.
>>
>>I personally dislike starring as a primitive practice and draw the
>>line at explaining how to do it but there are plenty of people to
>>think otherwise.
>
>Den 10/11/11 10.31 skrev "Lars Folkestad" <lfolkestad@health.sdu.dk>:
>
>>>>Sorry, thought it was a graphics question and did thus not mention the
>>>>statistics
>
>Den 10/11/11 10.05 skrev "Nick Cox" <njcoxstata@gmail.com>:
>
>>>>>Various thoughts, but I'll mention only one: What's the underlying
>>>>>test?
>
>On Thu, Nov 10, 2011 at 8:49 AM, Lars Folkestad
>
>>>>>> Im trying to indicate between group significant in a box plot using
>>>>>>
>>>>>>
>>>>>>        . graph box y1 y2
>>>>>>
>>>>>> Now i want to indicate that the between y1 and y2 there is a between
>>>>>>group
>>>>>> significants using the standard * for p<0.05 and ** for p<0.001
>>>>>> I can do it in the editor, but if there is a code i could put in my
>>>>>>do
>>>>>> file, that would be the easiest.
>>>>>>
>>>>>> Iv been fiddling with the yvar option in something like this:
>>>>>>
>>>>>> . graph box y1 y2, box(1, lcolor(navy) yvar(re("*")) box(2,
>>>>>>fcolor(green)
>>>>>> lcolor(green))
>
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