Hi,

I am a consultant in Quality Management.  I am exploring the use of R
with any GUI - R commander/Rkward for doing analytical work.  Have
installed R, R Commander and Rkward.

I hope to learn by doing various exercises that I use for teaching
analytical techniques to my clients.  I would be posting the data on
this mailing list, and the rkward mailing list wherever I get stuck.

First such technique I am trying to explore is the use of boxplots.
The data is pasted below:
Season  Transporter     Distance        Tonnage Time
1       1       500     1       17
1       1       500     2       22
1       1       1000    1       23
1       1       1000    2       29
1       1       1500    1       33
1       1       1500    2       38
1       2       500     1       19
1       2       500     2       26
1       2       1000    1       30
1       2       1000    2       35
1       2       1500    1       42
1       2       1500    2       42
2       1       500     1       18
2       1       500     2       24
2       1       1000    1       25
2       1       1000    2       26
2       1       1500    1       35
2       1       1500    2       38
2       2       500     1       21
2       2       500     2       24
2       2       1000    1       28
2       2       1000    2       37
2       2       1500    1       36
2       2       1500    2       44

In this exercise, I am trying to plot box plots of the variable
"Time", the last column and separated by all the other variables-
Season, Transporter, Distance and Tonnage.  I expect the output in
form of multiple box plots, arranged side by side so that I can
compare the time performance for, say, season 1, transporter 2,
Distance 500 and tonnage 2 with, say, season 2, transporter 1,
Distance 500 and tonnage 2.  The box plot command in R Commander
(Grpahs->Boxplot...) has a button called "plot by groups" presumably
to achieve what I am trying to do.  However, on clicking I don't get
any further output.  What am I missing?  (There is nothing equivalent
to this button under Rkward)

I tried to search the mailing list on box plot, but could not find
anything relevant.  I have also searched in manual and seen this type
(or even more complex analysis) being done on terminal.  However, I
need to do it under (any) GUI.  Any help is highly appreciated.

Thanks
Vikas Garud

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