[R] ommoting rows

[David Winsemius]

On Sep 18, 2012, at 12:08 PM, Jose Narillos de Santos wrote:

> Hi I have an output data Data.csv
> 
> this style:
> 
> ,"V1","V2","V3"  1,"-9552","9552","C"  2,"0","9653","0"
> 3,"9614","9614","V"  4,"0","9527","0"  5,"-9752","9752","C"
> 6,"0","9883","0"  7,"0","9865","0"
> I want to create a new matrix ommintg all the rows where third column has
> 0.
> 
> There is a way to do it easyly?
> 
> Many thanks in advance.
> 
> My final matrix will have:
> 
> ,"V1","V2","V3"1,"-9552","9552","C"
> 3,"9614","9614","V"5,"-9752","9752","C"

That text is mangled but this example of logical indexing should suffice, assuming that object is named "dat":

> dat[ !dat$V3==0, ]
     V1   V2 V3
1 -9552 9552  C
3  9614 9614  V
5 -9752 9752  C
> 
> 
-- 

David Winsemius, MD
Alameda, CA, USA