Thanks Z.
Let me clarify my problem a bit further ... as I don't think I could use cut()
or spine() to solve it.
I have a data frame with three columns (A, B, Value). 'A' and 'B' are
categorical and 'Value' is continuous and non-negative. I'm looking to make a
mosaic plot with A on one axis and B on the other. The size (i.e. area) of the
tiles would correspond to the proportion of the total Value represented by the
given combinations of the levels of A and B.
Thanks again,
Mauricio
________________________________
From: Achim Zeileis <achim.zeil...@uibk.ac.at>
Cc: "r-help@r-project.org" <r-help@r-project.org>
Sent: Wednesday, September 14, 2011 1:45 PM
Subject: Re: [R] Can 'mosaic' be used with a continuous variable?
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
>
> [[alternative HTML version deleted]]
>
>
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