On 26/06/2010 7:53 AM, Jim Hargreaves wrote:
Dear fellow R users,
I am replacing elements of a list like so:
pulse_subset[[1:20]]=unlist(pulse[i])[1:20]
If pulse is a list, then pulse[i] is also a list, with one element. I
think you want pulse[[i]], which extracts element i.
If pulse_subset is a list, then pulse_subset[[1:20]] is equivalent to
pulse_subset[[1]][[2]][[3]][[4]] ... [[20]], i.e. the syntax implies
that it is a list containing a list etc, nested 20 levels deep. The
error message is telling you that it's not. I'm not sure what your
intention is in this case.
Duncan Murdoch
where pulse is a list of lists, and pulse [i] has >20 values.
This gives the error "Recursive Indexing failed at level 2". But,
interestingly this instruction is part of a loop which has gone through
about 200,000 iterations before giving this error.
Actual code:
>
pulse_subset[[1:(length(unlist(pulse[i])[as.numeric(peak_start[i]):as.numeric(peak_end[i])]))]]
<- unlist(pulse[i])[as.numeric(peak_start[i]):as.numeric(peak_end[i])]
Error in
pulse_subset[[1:(length(unlist(pulse[i])[as.numeric(peak_start[i]):as.numeric(peak_end[i])]))]]
<- unlist(pulse[i])[as.numeric(peak_start[i]):as.numeric(peak_end[i])] :
recursive indexing failed at level 2
If anyone could shed some light I'd be rather grateful.
Regards,
Jim Hargreaves
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