Hi,
 
I have a matrix.
>a<-cbind(c("a","b","a"),c(4,3,6))
     [,1] [,2]
[1,] "a"  "4" 
[2,] "b"  "3" 
[3,] "a"  "6" 

I want to remove rows in matrix a whose first column has frequency less than 2.
in about example matrix a becomes
     [,1] [,2]
[1,] "a"  "4" 
[2,] "a"  "6" 




      
        [[alternative HTML version deleted]]

______________________________________________
R-help@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.

Reply via email to