table() command
Create factors from your variables that include the missing levels. e.g. x <- factor(c(1,1,1)) x0 <- factor(c(1,1,1), levels = 0:1) y <- factor(c(0,1,0)) table(x,y) # no zero for x table(x0,y) # zero for x
On 2/2/06, Taka Matzmoto <sell_mirage_ne at hotmail.com> wrote:
Hi R users
I am trying to get cross-tabulation tables using tables.
All variables used are binary ones (0 and 1).
Each time I constructed cross-tabluation table using a different variable
pair (e.g., variable 1 and variable 2, variable 1 and variable 3 etc)
In doing so, I ran into some problems
i.V2
i.V1 1
0 17
1 33
For variable 2 (i.V2) there was no one belonging to ZERO category but I like
to have a cross tabulation table looking like this
i.V2
i.V1 0 1
0 0 17
1 0 33
Is there any other functoin I can use instead of using table() or is there
any options I can add to table() ?
Any help or advice would be appreciated
Thanks
TM
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