[R] coplot row separatot line

[Pascal.Niklaus@unibas.ch]

Hi all,

I could not find a way to add the dashed horizontal separator line to the top
panel of a coplot (the one indicating which panel belongs to which range of the
given variable a in  y~x | a).

This line should separate the ranges plotted in a row of panels in the panel
matrix below (hmmm, hope this is reasonably clear). I like it because it
enhances readability.

I'll try a sketch:

> coplot(y~x | a)

           given: a
+------------------------------+
|                         6666 | 
|                    55555     |
|                4444          |
+ - - - - - - - - - - - - - - -+   <== this line
|             333              |
|       22222                  |
| 11111                        |
+------------------------------+

+--------+ +--------+ +--------+ 
|  4     | |  5     | |   6    |
|        | |        | |        |
+--------+ +--------+ +--------+ 

+--------+ +--------+ +--------+
|  1     | |   2    | |   3    |
|        | |        | |        | 
+--------+ +--------+ +--------+ 

I've seen this line in some coplots, but am not sure whether this was S-Plus or R.

Thanks for any hint

Pascal


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