[R] manual construction of box&whisker plot

[Bernd Dittmann]

Dear useRs,

how can I construct a box&whisker plot based on the vector "fivenum"?

The challenge I face is as follow: I have a table such as

x   |   fivenum
---------------
... |   (.....)
... |   (.....)

and so forth....


For each observation x I have generated a vector containing the fivenum 
estimates.

The first challenge is to group my fivenum vectors into groups based on 
a selection criterion of x, say for 0 < x < 6, all fivenum vectors would 
be collected in that group.

Once all my fivenum vectors are in their respective groups, I wish to 
generate a b&w plot for each group.


How could I possibly do that? Also, what would be the most convenient 
approach.

Looking forward to your suggestions.

Many thanks in advance!

Sincerely,

Bernd Dittmann