I am trying to create multiple dataset by group like the following using either a loop or vectorization:

vocallGp1<-subset(vocallsub, Group==1)
vocallGp2<-subset(vocallsub, Group==2)
vocallGp3<-subset(vocallsub, Group==3)
 vocallGp4<-subset(vocallsub, Group==4)
 vocallGp5<-subset(vocallsub, Group==5)

When I create the loop I get the following error:

vocallsub<-vocall[c("PatientID","Group")]
>
> for(i in 1:length(vocallsub$Group)){vocallGrp[i]<-subset(vocallsub, Group==(i))}
Error in vocallGrp[i] <- subset(vocallsub, Group == (i)) :
  object 'vocallGrp' not found

This is my first time attempting to create a loop and am not sure what I am missing and I need assistance with the proper syntax.


Chris Anderson
Data Analyst
Medical Affairs
wk: 925-677-4870
cell: 707-315-8486
Fax:925-677-4670





This electronic message transmission, including any attachments, contains
information which may be confidential, privileged and/or otherwise exempt
from disclosure under applicable law. The information is intended to be for the
use of the individual(s) or entity named above. If you are not the intended
recipient or the employee or agent responsible for delivering the message
to the intended recipient, you are hereby notified that any disclosure, copying,
distribution or use of the contents of this information is strictly prohibited.  If
you have received this electronic transmission in error, please notify the sender
immediately by telephone (800-676-6777) or by a "reply to sender only"
message and destroy all electronic and hard copies of the communication,
including attachments.  Thank you.

For more information on Paradigm Management Services, LLC, please visit
http://www.paradigmcorp.com

	[[alternative HTML version deleted]]


