In reply to Quentin.

Yes, true. For example, here is the article's example by using PROC SGPANEL:

proc means data=Sashelp.Class noprint;
var height;
output out=OutStats(drop=_TYPE_ _FREQ_)
n=N mean=Mean std=StdDev min=Min max=Max;
run;

data All;
merge Sashelp.Class OutStats;
dummy = 1; /* trick: create a "panel" that has one cell */
run;

ods graphics / width=640px height=480px;
proc sgpanel data=All;
panelby dummy / noheader;
histogram height;
inset N Mean StdDev Min Max / border;
label StdDev = "Std Dev"; /* Note: Use LABEL stmt to specify alt text in inset */
run;

I explicitly set the size of the graph because otherwise PROC SGPANEL uses default sizes that are suited for multiple panels.