[R] barplot

Uwe Ligges ligges at statistik.uni-dortmund.de
Sat Oct 16 15:38:21 CEST 2004


Sepp Gurgel wrote:

> I have a table 

Do you mean a data.frame?

> with two columns, one with types of blood (A, B, AB or 0) and
> one with the factor (negative = -1 or positive = 1).

And from these you made a table?

   my.table <- table(my.data.frame)


> How can I combine those two columns so that 7 bars are plotted (A, B, AB, 0,
> -A, -B and -0)?

Now you can say

   blood.id <- outer(rownames(my.table), colnames(m.ytable),
                     paste, sep="")
   barplot(as.vector(my.table), names = blood.id)

Uwe Ligges



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