For the case of 1-way MANOVA and 3 groups, we
have developed equations which provide quantiles of the
* multivariate studentized range procedure *
which are off by no more than 0.0151 in the worst case, but
generally are a great deal more accurate than that. The strength of
these equations is that they are applicable to the case of unequal
groups as well as the case of equal groups. Currently
the equations can be used for the following situations:

*quantiles:*`0.8,0.825,0.85,...,0.925,0.95,0.975,0.99`

*dimensions:*`1,2,3,4,5`

*group sizes:*`arbitrary group sizes between 4 and 100 (e.g. n1=8,n2=13, and n3=21).`

Code for the equations:

Publication related to these equations:

- Otto Schwalb and James R. Thompson (1998). "Approximate Quantiles for the Multivariate Studentized Range in the Case of Three Unequal Groups",
*Proceedings of the Third U.S. Army Conference on Applied Statistics*, pp. 111-122. (postscript file)

* This page last maintained on 4/15/99*

* Problems or suggestions to
webmaster@stat.rice.edu *