
that doesn't seem to be the issue i'm afraid... both j sequences produce the same numbers:

> j<-seq(1,166,11)
> j
 [1]   1  12  23  34  45  56  67  78  89 100 111 122 133 144 155 166
> j<-seq(1,176,11)
> j
 [1]   1  12  23  34  45  56  67  78  89 100 111 122 133 144 155 166

> Date: Fri, 8 Feb 2013 16:37:52 +0000
> From: ruipbarradas@sapo.pt
> To: christellacaze@hotmail.co.uk
> CC: r-help@r-project.org
> Subject: Re: [R] help with double looping
> 
> Hello,
> 
> Maybe seq(1, 16*11, 11)? (16*11 is 176, not 166)
> 
> 
> Hope this helps,
> 
> Rui Barradas
> 
> Em 08-02-2013 16:03, christel lacaze escreveu:
> >
> > hi there,
> >
> > I have a dataframe in the shape vA1, vA2,..., vA11, vB1, vB2,..., VB11,......., VP1, VP2,...., VP11 (so 16 times a sequence of 11 variables)
> > I am trying to build a double loop so that i can apply the function (i-1)*v(i) to the first 10 variables, then the same for the next 10 variables, etc... 16 times.
> >
> > I have tried the following with no luck:
> >
> > iscores<-list()
> > for (j in seq(1,166,11))
> >    {
> >    for (i in j:(j+10))
> >      {iscores[[i-j+1]]=(i-j)*data[[i-j+1]]
> >      }
> >    }
> >
> > any suggestion...?
> >
> > many thanks,
> >
> > Christel
> >   		 	   		
> > 	[[alternative HTML version deleted]]
> >
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> > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
 		 	   		  
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