[R] R code -column headings

[Gabor Grothendieck]

To do that be sure to give each dimension, itself, a name when
the matrix is defined:

mat <-matrix(c(266, 359, 533, 313, 555, 504, 502, 242), nrow = 4,
	dimnames = list(Region = c("Northeast", "Midwest", "South", "West"),
				Type = c("Public", "Private")))
as.data.frame(as.table(mat))
addmargins(mat)

On Fri, Mar 6, 2009 at 12:13 PM, Mary A. Marion <mam5eb at virginia.edu> wrote:
> Hello,
>
> I have been noticing that some of my column headings are missing. Can you
> give me a clue as to how to
>
> 1] replace Var1 and Var 2 by Region and type ie do it right the first time
>
> x<-matrix(c(266, 359, 533, 313, 555, 504, 502, 242),nrow=4)
> rownames(x)=c( "Northeast", "Midwest", "South", "West" )
> colnames(x)=c("Public", "Private")
> as.data.frame(as.table(x))
>
> 2] add a column heading for region when I use addmargins(x)
>
> addmargins(x)
> #margin.table(x,1)
> #margin.table(x,2)
>
> Thank you.
> Sincerely,
> Mary A. Marion
>
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