ommoting rows
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