Box plot for IQR and median

[Mariska Snel]

Dear Statalists,

I would like to request your advice about how to make a proper box plot containing the median and IQR of a non-normal distributed variable.

I used the commands

summ (variable), detail

in order to obtain the range of the variable. Then I used the command

tabstat (variable), stat(mean sd q iqr)

to find the 25, 75 and interquartile range. But now the problem; how can I show this data in a graphic? I tried using

graph box

, but that helps me out with a normal box plot only.

Would love to hear your advice on this topic, thanks in advance!

Regards,
Mariska

[Nick Cox]

I've never come across any definition of "proper" or "normal" box plots. However, http://www.stata-journal.com/article...article=gr0039 or http://www.stata-journal.com/article...article=gr0045 should answer your question.

[Mariska Snel]

I've never come across any definition of "proper" or "normal" box plots. However, http://www.stata-journal.com/article...article=gr0039 or http://www.stata-journal.com/article...article=gr0045 should answer your question.

Thanks Nick, those two articles helped me out a lot! I also used this file http://www.stata.com/manuals13/g-2graphbox.pdf in addition to your documents.