Merging two boxplot in one...

[Christian Bastien]

Hi,

I succeeded in producing a boxplot of 6 variables by two types of polulations. So I have two boxplot each presenting the 6 variables.
However, I would like to "merge" the two boxplots such that for each variable I would have the two boxplots for each populations.

Here is the command : graph box pt01 sa01 gp01 gs01 dc01 dm01, by(, graphregion(fcolor(none) lcolor(none) ifcolor(none) ilcolor(none))) by(pop)
On the figure, I would like to have the boxplots for one variable side by side for the two populations (1 and 2).

I looked at the examples, I search on the Web but I just can't figure it out... ;-(

Need your help,
Thanks in advance,
Christian

[Nick Cox]

Evidently your underlying data are scores 1 2 3 4 5. For such data box plots are not effective. You'd be better off with 6 x 2 x 5 bars showing the actual frequencies. In almost all groups here at least 25% and in some groups at least 50% of values are exactly 5, but the percents achieving 5 are different and possibly of great interest.

[Christian Bastien]

Hi Nick,
Thank you very much for this advice. I will do it.
Christian

[Nick Cox]

Assuming your dataset is safely saved then showing the results of

contract POP PT01 SA01 GP01 GS01 DC01 DM01 
dataex

would let others show possibilities for your data. If the call to dataex produces an error message, then see FAQ Advice #12 for more.