[R] vcd package, assoc()

[Nicolas Mazziotta]

Hello,

I am trying to use the extended assocplot() function: assoc(), from vcd 
package. Trouble is that it cannot even run its own examples on my 
installation. I get this output:

$> example(assoc)

assoc> data("HairEyeColor")

assoc> (x <- margin.table(HairEyeColor, c(1, 2)))
       Eye
Hair    Brown Blue Hazel Green
  Black    68   20    15     5
  Brown   119   84    54    29
  Red      26   17    14    14
  Blond     7   94    10    16

assoc> assoc(x)
Error in unit.c(mar[4], unit(1, "null"), mar[2], legend_width) :
        It is invalid to combine unit objects with other types


Version info output by citation("vcd") is 1.0-1.

Any idea about what's going wrong? 

Thanks for any help.

-- 
Nicolas Mazziotta

The contents of this e-mail, including any attachments, are confidential and 
are intended for the sole use of the individual or entity to which it is 
addressed. Any distribution, copying or dissemination of this message is 
expected to conform to all legal stipulations governing the use of 
information.