[R] Concurrence Matrix

[Berton Gunter]

?outer
Use "!=" for FUN and convert to numeric with as.numeric() if you like.

-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
 
"The business of the statistician is to catalyze the scientific learning
process."  - George E. P. Box
 
 

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of mark salsburg
> Sent: Wednesday, August 17, 2005 10:26 AM
> To: R-help at stat.math.ethz.ch
> Subject: [R] Concurrence Matrix
> 
> Thank you for all the help.
> 
> Can someone refer me to a function that can help with the creation of
> a concurrence matrix?
> 
> I have two asymmetric vectors (C is length 217 and D is length 16063)
> that contain values of 0,1,2
> 
> I want to create a matrix E (where rows are D and columns are C)  that
> ouputs a score where
> 
> if C and D are the same number then E has value 1
> if C and D are different numbers (i.e. 0 and 1, or 2 and 1) 
> then E has a value 0
> 
> so for example:
> 
> so if C is c(0,0,2,1,0,0)
> and  D is c(0,0,1,1,1,1,1,1)
> 
> E would look like:
> 
>       C      0  0  2  1  0  0
> 
> D    0      1  1  0  0  0  0  
>       0      1  1  0  0  1  1
>       1      0  0  0  1  0  0
>       1      0  0  0  1  0  0
>       1      0  0  0  1  0  0 
>       1      0  0  0  1  0  0
>       1      0  0  0  1  0  0 
>       1      0  0  0  1  0  0
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
>