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
Answer to your first question:> 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") > y <- as.data.frame(as.table(x)) > names(y)[1:2] <- c("Region", "Type") > yRegion Type Freq 1 Northeast Public 266 2 Midwest Public 359 3 South Public 533 4 West Public 313 5 Northeast Private 555 6 Midwest Private 504 7 South Private 502 8 West Private 242>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 > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve?
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
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>