[R] Dendrogram for a type unbalanced ANOVA

[bob sandefur]

Hi-

I have about 20 groups for which I know the mean, variance, and number of
points per group. Is here an R function where I can plot (3 group example)
something like

|                  |----- 2
|      |-----------|
|      |           |----- 1
|      |
|------|
|      |----------------- 3
|
|
0     25     50   75     100

ie 1 and 2 are different at 75% level of confidence
   1 2 combined are  different from 3 at 25% level of confidence

If this plot is a silly idea can someone point me to a reference for
anything similar?

Thanx

Robert (Bob) L. Sandefur PE
Senior Geostatistician / Reserve Analyst
CAM
200 Union Suite G-13
Lakewood, Co
80228
 
rsandefur at cam-llc.com
 
303 472-3240 (cell) <-best  choice
 
303 716-1617 ext 14