R help - Sep 2011 - Can 'mosaic' be used with a continuous variable?

Hello,

I'm wondering if the 'mosaic' plot of the vcd package (or any other
function for that matter) can be used with a continuous variable that should be
represented via various categorical variables.  All the documentation I've
read lead me to believe that it only works with counts of categories.

Alternatively, I've thought of first creating a contingency table where the
frequencies would really be the values of my continuous variable as opposed to
counts ... but I don't know how to do that.

Any insight would be appreciated.

Thanks,
Mauricio

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On Wed, 14 Sep 2011, Mauricio Cornejo wrote:
> Hello,
>
> I'm wondering if the 'mosaic' plot of the vcd package (or any
other
> function for that matter) can be used with a continuous variable that 
> should be represented via various categorical variables.? All the 
> documentation I've read lead me to believe that it only works with 
> counts of categories.
>
> Alternatively, I've thought of first creating a contingency table where
> the frequencies would really be the values of my continuous variable as 
> opposed to counts ... but I don't know how to do that.
Well, you can always use cut() to create a categorical variable from a 
continuous variable. But you have to do that in advance before calling 
mosaic().

For a bivariate display with a continuous x and a categorical y, you can 
use spine() which does the categorization for you.

hth,
Z
> Any insight would be appreciated.
>
> Thanks,
> Mauricio
>
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>
>